diff --git a/src/Model/DIFAdisTS/DIFAdisTS.py b/src/Model/DIFAdisTS/DIFAdisTS.py
new file mode 100644
index 0000000000000000000000000000000000000000..c04479416e45e7d53b5933b164db4306e8847a4e
--- /dev/null
+++ b/src/Model/DIFAdisTS/DIFAdisTS.py
@@ -0,0 +1,258 @@
+# DIFAdisTS.py -- Pamhyr
+# Copyright (C) 2023-2024  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+import logging
+from functools import reduce
+
+from tools import trace, timer, old_pamhyr_date_to_timestamp
+
+from Model.Tools.PamhyrDB import SQLSubModel
+from Model.Except import NotImplementedMethodeError
+
+from Model.DIFAdisTS.DIFAdisTSSpec import DIFAdisTSSpec
+
+logger = logging.getLogger()
+
+class DIFAdisTS(SQLSubModel):
+    _sub_classes = [
+        DIFAdisTSSpec,
+    ]
+    _id_cnt = 0
+
+    def __init__(self, id: int = -1, name: str = "default",
+                 status=None):
+        super(DIFAdisTS, self).__init__()
+
+        self._status = status
+
+        if id == -1:
+            self.id = DIFAdisTS._id_cnt
+        else:
+            self.id = id
+
+        self._name = name
+        self._method = None
+        self._dif = None
+        self._b = None
+        self._c = None
+        self._enabled = True
+        self._types = ["iwasa", "fisher", "elder", "constante", "generique"]
+        self._data = []
+
+        DIFAdisTS._id_cnt = max(
+            DIFAdisTS._id_cnt + 1,
+            self.id
+        )
+
+    @classmethod
+    def _db_create(cls, execute):
+        execute("""
+                  CREATE TABLE dif_adists(
+                    id INTEGER NOT NULL PRIMARY KEY,
+                    name TEXT NOT NULL,
+                    method TEXT NOT NULL,
+                    dif REAL NOT NULL,
+                    b REAL,
+                    c REAL,
+                    enabled BOOLEAN NOT NULL
+                  )
+                """)
+
+        return cls._create_submodel(execute)
+
+    @classmethod
+    def _db_update(cls, execute, version):
+        major, minor, release = version.strip().split(".")
+        if major == minor == "0":
+            if int(release) < 6:
+                cls._db_create(execute)
+
+        return True
+
+    @classmethod
+    def _db_load(cls, execute, data=None):
+        new = []
+
+        table = execute(
+            "SELECT id, name, method, dif, b, c, enabled " +
+            "FROM dif_adists"
+        )
+
+        if table is not None:
+            for row in table:
+                dif_id = row[0]
+                name = row[1]
+                method = row[2]
+                dif = row[3]
+                b = row[4]
+                c = row[5]
+                enabled = (row[6] == 1)
+
+                DIF = cls(
+                    id=dif_id,
+                    name=name,
+                    status=data['status']
+                )
+
+                DIF.method = method
+                DIF.dif = dif
+                DIF.b = b
+                DIF.c = c
+                DIF.enabled = enabled
+
+                data['dif_default_id'] = dif_id
+                DIF._data = DIFAdisTSSpec._db_load(execute, data)
+
+                new.append(DIF)
+
+        return new
+
+    def _db_save(self, execute, data=None):
+        execute(f"DELETE FROM dif_adists WHERE id = {self.id}")
+
+        method = ""
+        if self.method is not None:
+            method = self.method
+
+        dif = -1.
+        if self.dif is not None:
+            dif = self.dif
+
+        b = -1.
+        if self.b is not None:
+            b = self.b
+
+        c = -1.
+        if self.dif is not None:
+            c = self.c
+
+        sql = (
+            "INSERT INTO " +
+            "dif_adists(" +
+            "id, name, method, dif, b, c, enabled" +
+            ") " +
+            "VALUES (" +
+            f"{self.id}, '{self._db_format(self._name)}', " +
+            f"'{self._db_format(self._method)}', " +
+            f"{dif}, {b}, {c}, {self._enabled}" +
+            ")"
+        )
+
+        execute(sql)
+
+        data['dif_default_id'] = self.id
+        execute(
+            "DELETE FROM dif_spec " +
+            f"WHERE dif_default = {self.id}"
+        )
+
+        for dif_spec in self._data:
+            dif_spec._db_save(execute, data)
+
+        return True
+
+    def __len__(self):
+        return len(self._data)
+
+    @property
+    def name(self):
+        return self._name
+
+    @name.setter
+    def name(self, name):
+        self._name = name
+        self._status.modified()
+
+    @property
+    def method(self):
+        return self._method
+
+    @method.setter
+    def method(self, method):
+        self._method = method
+        self._status.modified()
+
+    @property
+    def types(self):
+        return self._types
+
+    @property
+    def dif(self):
+        return self._dif
+
+    @dif.setter
+    def dif(self, dif):
+        self._dif = dif
+        self._status.modified()
+
+    @property
+    def b(self):
+        return self._b
+
+    @b.setter
+    def b(self, b):
+        self._b = b
+        self._status.modified()
+
+    @property
+    def c(self):
+        return self._c
+
+    @c.setter
+    def c(self, c):
+        self._c = c
+        self._status.modified()
+
+    @property
+    def enabled(self):
+        return self._enabled
+
+    @enabled.setter
+    def enabled(self, enabled):
+        self._enabled = enabled
+        self._status.modified()
+
+    def new(self, index):
+        n = DIFAdisTSSpec(status=self._status)
+        self._data.insert(index, n)
+        self._status.modified()
+        return n
+
+    def delete(self, data):
+        self._data = list(
+            filter(
+                lambda x: x not in data,
+                self._data
+            )
+        )
+        self._status.modified()
+
+    def delete_i(self, indexes):
+        for ind in indexes:
+            del self._data[ind]
+        self._status.modified()
+
+    def insert(self, index, data):
+        self._data.insert(index, data)
+        self._status.modified()
+
+
+
+
+
+
diff --git a/src/Model/DIFAdisTS/DIFAdisTSList.py b/src/Model/DIFAdisTS/DIFAdisTSList.py
new file mode 100644
index 0000000000000000000000000000000000000000..89eff085ff6b91721cf2efb93633449d8d7ac348
--- /dev/null
+++ b/src/Model/DIFAdisTS/DIFAdisTSList.py
@@ -0,0 +1,62 @@
+# DIFAdisTSList.py -- Pamhyr
+# Copyright (C) 2023-2024  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+from copy import copy
+from tools import trace, timer
+
+from Model.Tools.PamhyrList import PamhyrModelList
+from Model.DIFAdisTS.DIFAdisTS import DIFAdisTS
+
+class DIFAdisTSList(PamhyrModelList):
+    _sub_classes = [
+        DIFAdisTS,
+    ]
+
+    @classmethod
+    def _db_load(cls, execute, data=None):
+        new = cls(status=data['status'])
+
+        if data is None:
+            data = {}
+
+        new._lst = DIFAdisTS._db_load(
+            execute, data
+        )
+
+        return new
+
+    def _db_save(self, execute, data=None):
+        execute("DELETE FROM dif_adists")
+
+        if data is None:
+            data = {}
+
+        for dif in self._lst:
+            dif._db_save(execute, data=data)
+
+        return True
+
+    def new(self, index):
+        n = DIFAdisTS(status=self._status)
+        self._lst.insert(index, n)
+        self._status.modified()
+        return n
+
+
+
+
diff --git a/src/Model/DIFAdisTS/DIFAdisTSSpec.py b/src/Model/DIFAdisTS/DIFAdisTSSpec.py
new file mode 100644
index 0000000000000000000000000000000000000000..6850fb6559776141b270275096e74916d997fb10
--- /dev/null
+++ b/src/Model/DIFAdisTS/DIFAdisTSSpec.py
@@ -0,0 +1,228 @@
+# DIFAdisTSSpec.py -- Pamhyr
+# Copyright (C) 2023-2024  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+import logging
+
+from tools import trace, timer
+
+from Model.Tools.PamhyrDB import SQLSubModel
+from Model.Except import NotImplementedMethodeError
+
+logger = logging.getLogger()
+
+class DIFAdisTSSpec(SQLSubModel):
+    _sub_classes = [
+    ]
+    _id_cnt = 0
+
+    def __init__(self, id: int = -1, method: str = "",
+                 status=None):
+        super(DIFAdisTSSpec, self).__init__()
+
+        self._status = status
+
+        if id == -1:
+            self.id = DIFAdisTSSpec._id_cnt
+        else:
+            self.id = id
+
+        self._method = method
+        self._reach = None
+        self._start_kp = None
+        self._end_kp = None
+        self._dif = None
+        self._b = None
+        self._c = None
+        self._enabled = True
+
+        DIFAdisTSSpec._id_cnt = max(DIFAdisTSSpec._id_cnt + 1, self.id)
+
+    @classmethod
+    def _db_create(cls, execute):
+        execute("""
+              CREATE TABLE dif_spec(
+                id INTEGER NOT NULL PRIMARY KEY,
+                dif_default INTEGER NOT NULL,
+                method TEXT NOT NULL,
+                reach INTEGER NOT NULL,
+                start_kp REAL NOT NULL,
+                end_kp REAL NOT NULL,
+                dif REAL NOT NULL,
+                b REAL,
+                c REAL,
+                enabled BOOLEAN NOT NULL,
+                FOREIGN KEY(dif_default) REFERENCES dif_adists(id),
+                FOREIGN KEY(reach) REFERENCES river_reach(id)
+              )
+            """)
+
+        return cls._create_submodel(execute)
+
+    @classmethod
+    def _db_update(cls, execute, version):
+        major, minor, release = version.strip().split(".")
+        if major == minor == "0":
+            if int(release) < 6:
+                cls._db_create(execute)
+
+        return True
+
+    @classmethod
+    def _db_load(cls, execute, data=None):
+        new = []
+
+        table = execute(
+            "SELECT id, dif_default, method, reach, start_kp, end_kp, " +
+            "dif, b, c, enabled " +
+            "FROM dif_spec " +
+            f"WHERE dif_default = {data['dif_default_id']} "
+        )
+
+        for row in table:
+            id            = row[0]
+            method          = row[2]
+            reach         = row[3]
+            start_kp      = row[4]
+            end_kp        = row[5]
+            dif = row[6]
+            b = row[7]
+            c = row[8]
+            enabled       = (row[9] == 1)
+
+            new_spec = cls(
+                id=id,
+                method=method,
+                status=data['status']
+            )
+
+            new_spec.reach = reach
+            new_spec.start_kp = start_kp
+            new_spec.end_kp = end_kp
+            new_spec.dif = dif
+            new_spec.b = b
+            new_spec.c = c
+            new_spec.enabled = enabled
+
+            new.append(new_spec)
+
+        return new
+
+    def _db_save(self, execute, data=None):
+        dif_default = data['dif_default_id']
+
+        sql = (
+            "INSERT INTO " +
+            "dif_spec(id, dif_default, method, reach, " +
+            "start_kp, end_kp, dif, b, c, enabled) " +
+            "VALUES (" +
+            f"{self.id}, " +
+            f"{dif_default}, " +
+            f"'{self._db_format(self._method)}', " +
+            f"{self._reach}, " +
+            f"{self._start_kp}, " +
+            f"{self._end_kp}, " +
+            f"{self._dif}, " +
+            f"{self._b}, " +
+            f"{self._c}, " +
+            f"{self._enabled}" +
+            ")"
+        )
+        execute(sql)
+
+        return True
+
+    @property
+    def method(self):
+        return self._method
+
+    @method.setter
+    def method(self, method):
+        self._method = method
+        self._status.modified()
+
+    @property
+    def reach(self):
+        return self._reach
+
+    @reach.setter
+    def reach(self, reach):
+        self._reach = reach
+        self._status.modified()
+
+    @property
+    def start_kp(self):
+        return self._start_kp
+
+    @start_kp.setter
+    def start_kp(self, start_kp):
+        self._start_kp = start_kp
+        self._status.modified()
+
+    @property
+    def end_kp(self):
+        return self._end_kp
+
+    @end_kp.setter
+    def end_kp(self, end_kp):
+        self._end_kp = end_kp
+        self._status.modified()
+
+    @property
+    def dif(self):
+        return self._dif
+
+    @dif.setter
+    def dif(self, dif):
+        self._dif = dif
+        self._status.modified()
+
+    @property
+    def b(self):
+        return self._b
+
+    @b.setter
+    def b(self, b):
+        self._b = b
+        self._status.modified()
+
+    @property
+    def c(self):
+        return self._c
+
+    @c.setter
+    def c(self, c):
+        self._c = c
+        self._status.modified()
+
+    @property
+    def enabled(self):
+        return self._enabled
+
+    @enabled.setter
+    def enabled(self, enabled):
+        self._enabled = enabled
+        self._status.modified()
+
+
+
+
+
+
+
+
+
diff --git a/src/Model/River.py b/src/Model/River.py
index 4cc2c5e44b1f3b6001af16943e3f8100e3e79d14..e5797961c9f6188cda9c70a254548b9cf6f00ea9 100644
--- a/src/Model/River.py
+++ b/src/Model/River.py
@@ -51,6 +51,7 @@ from Model.InitialConditionsAdisTS.InitialConditionsAdisTSList import InitialCon
 from Model.BoundaryConditionsAdisTS.BoundaryConditionsAdisTSList import BoundaryConditionsAdisTSList
 from Model.LateralContributionsAdisTS.LateralContributionsAdisTSList import LateralContributionsAdisTSList
 from Model.D90AdisTS.D90AdisTSList import D90AdisTSList
+from Model.DIFAdisTS.DIFAdisTSList import DIFAdisTSList
 
 
 class RiverNode(Node, SQLSubModel):
@@ -241,6 +242,7 @@ class River(Graph, SQLSubModel):
         BoundaryConditionsAdisTSList,
         LateralContributionsAdisTSList,
         D90AdisTSList,
+        DIFAdisTSList,
     ]
 
     def __init__(self, status=None):
@@ -270,6 +272,7 @@ class River(Graph, SQLSubModel):
         self._BoundaryConditionsAdisTS = BoundaryConditionsAdisTSList(status=self._status)
         self._LateralContributionsAdisTS = LateralContributionsAdisTSList(status=self._status)
         self._D90AdisTS = D90AdisTSList(status=self._status)
+        self._DIFAdisTS = DIFAdisTSList(status=self._status)
 
     @classmethod
     def _db_create(cls, execute):
@@ -358,6 +361,8 @@ class River(Graph, SQLSubModel):
 
         new._D90AdisTS = D90AdisTSList._db_load(execute, data)
 
+        new._DIFAdisTS = DIFAdisTSList._db_load(execute, data)
+
         return new
 
     def _db_save(self, execute, data=None):
@@ -383,6 +388,7 @@ class River(Graph, SQLSubModel):
         objs.append(self._BoundaryConditionsAdisTS)
         objs.append(self._LateralContributionsAdisTS)
         objs.append(self._D90AdisTS)
+        objs.append(self._DIFAdisTS)
 
         self._save_submodel(execute, objs, data)
         return True
@@ -530,6 +536,10 @@ Last export at: @date."""
     def d90_adists(self):
         return self._D90AdisTS
 
+    @property
+    def dif_adists(self):
+        return self._DIFAdisTS
+
     def get_params(self, solver):
         if solver in self._parameters:
             return self._parameters[solver]
diff --git a/src/View/DIFAdisTS/Table.py b/src/View/DIFAdisTS/Table.py
new file mode 100644
index 0000000000000000000000000000000000000000..13d5555cb7a43845c940398e56f6b7aded460514
--- /dev/null
+++ b/src/View/DIFAdisTS/Table.py
@@ -0,0 +1,217 @@
+# Table.py -- Pamhyr
+# Copyright (C) 2023-2024  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+import logging
+import traceback
+from tools import trace, timer
+
+from PyQt5.QtCore import (
+    Qt, QVariant, QAbstractTableModel,
+    QCoreApplication, QModelIndex, pyqtSlot,
+    QRect,
+)
+
+from PyQt5.QtWidgets import (
+    QDialogButtonBox, QPushButton, QLineEdit,
+    QFileDialog, QTableView, QAbstractItemView,
+    QUndoStack, QShortcut, QAction, QItemDelegate,
+    QComboBox,
+)
+
+from View.Tools.PamhyrTable import PamhyrTableModel
+
+from View.D90AdisTS.UndoCommand import (
+    SetCommand, AddCommand, SetCommandSpec,
+    DelCommand,
+)
+
+logger = logging.getLogger()
+
+_translate = QCoreApplication.translate
+
+
+class ComboBoxDelegate(QItemDelegate):
+    def __init__(self, data=None, ic_spec_lst=None, trad=None, parent=None, mode="reaches"):
+        super(ComboBoxDelegate, self).__init__(parent)
+
+        self._data = data
+        self._mode = mode
+        self._trad = trad
+        self._ic_spec_lst = ic_spec_lst
+
+    def createEditor(self, parent, option, index):
+        self.editor = QComboBox(parent)
+
+        val = []
+        if self._mode == "kp":
+            reach_id = self._ic_spec_lst[index.row()].reach
+
+            reach = next(filter(lambda edge: edge.id == reach_id, self._data.edges()))
+
+            if reach_id is not None:
+                val = list(
+                    map(
+                        lambda kp: str(kp), reach.reach.get_kp()
+                    )
+                )
+        else:
+            val = list(
+                map(
+                    lambda n: n.name, self._data.edges()
+                )
+            )
+
+        self.editor.addItems(
+            [self._trad['not_associated']] +
+            val
+        )
+
+        self.editor.setCurrentText(str(index.data(Qt.DisplayRole)))
+        return self.editor
+
+    def setEditorData(self, editor, index):
+        value = index.data(Qt.DisplayRole)
+        self.editor.currentTextChanged.connect(self.currentItemChanged)
+
+    def setModelData(self, editor, model, index):
+        text = str(editor.currentText())
+        model.setData(index, text)
+        editor.close()
+        editor.deleteLater()
+
+    def updateEditorGeometry(self, editor, option, index):
+        r = QRect(option.rect)
+        if self.editor.windowFlags() & Qt.Popup:
+            if editor.parent() is not None:
+                r.setTopLeft(self.editor.parent().mapToGlobal(r.topLeft()))
+        editor.setGeometry(r)
+
+    @pyqtSlot()
+    def currentItemChanged(self):
+        self.commitData.emit(self.sender())
+
+
+class D90TableModel(PamhyrTableModel):
+    def __init__(self, river=None, data=None, **kwargs):
+        self._river = river
+
+        super(D90TableModel, self).__init__(data=data, **kwargs)
+
+        self._data = data
+
+    def _setup_lst(self):
+        self._lst = self._data._data
+
+    def rowCount(self, parent):
+        return len(self._lst)
+
+    def data(self, index, role):
+        if role != Qt.ItemDataRole.DisplayRole:
+            return QVariant()
+
+        row = index.row()
+        column = index.column()
+
+        if self._headers[column] is "name":
+            n = self._lst[row].name
+            if n is None or n == "":
+                return self._trad['not_associated']
+            return n
+        elif self._headers[column] is "reach":
+            n = self._lst[row].reach
+            if n is None:
+                return self._trad['not_associated']
+            return next(filter(lambda edge: edge.id == n, self._river.edges())).name
+        elif self._headers[column] is "start_kp":
+            n = self._lst[row].start_kp
+            if n is None:
+                return self._trad['not_associated']
+            return n
+        elif self._headers[column] is "end_kp":
+            n = self._lst[row].end_kp
+            if n is None:
+                return self._trad['not_associated']
+            return n
+        elif self._headers[column] is "d90":
+            n = self._lst[row].d90
+            if n is None:
+                return self._trad['not_associated']
+            return n
+
+        return QVariant()
+
+    def setData(self, index, value, role=Qt.EditRole):
+        if not index.isValid() or role != Qt.EditRole:
+            return False
+
+        row = index.row()
+        column = index.column()
+
+        try:
+            if self._headers[column] != "reach":
+                self._undo.push(
+                    SetCommandSpec(
+                        self._lst, row, self._headers[column], value
+                    )
+                )
+            elif self._headers[column] == "reach":
+                print(self._river.edge(value).id)
+                self._undo.push(
+                    SetCommandSpec(
+                        self._lst, row, self._headers[column], self._river.edge(value).id
+                    )
+                )
+        except Exception as e:
+            logger.info(e)
+            logger.debug(traceback.format_exc())
+
+        self.dataChanged.emit(index, index)
+        return True
+
+    def add(self, row, parent=QModelIndex()):
+        self.beginInsertRows(parent, row, row - 1)
+
+        self._undo.push(
+            AddCommand(
+                self._data, self._lst, row
+            )
+        )
+
+        self.endInsertRows()
+        self.layoutChanged.emit()
+
+    def delete(self, rows, parent=QModelIndex()):
+        self.beginRemoveRows(parent, rows[0], rows[-1])
+
+        self._undo.push(
+            DelCommand(
+                self._data, self._lst, rows
+            )
+        )
+
+        self.endRemoveRows()
+        self.layoutChanged.emit()
+
+    def undo(self):
+        self._undo.undo()
+        self.layoutChanged.emit()
+
+    def redo(self):
+        self._undo.redo()
+        self.layoutChanged.emit()
+
diff --git a/src/View/DIFAdisTS/TableDefault.py b/src/View/DIFAdisTS/TableDefault.py
new file mode 100644
index 0000000000000000000000000000000000000000..c3231d424916abef2ccb4c1790739737e44e5989
--- /dev/null
+++ b/src/View/DIFAdisTS/TableDefault.py
@@ -0,0 +1,95 @@
+# Table.py -- Pamhyr
+# Copyright (C) 2023-2024  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+import logging
+import traceback
+from tools import trace, timer
+
+from PyQt5.QtCore import (
+    Qt, QVariant, QAbstractTableModel,
+    QCoreApplication, QModelIndex, pyqtSlot,
+    QRect,
+)
+
+from PyQt5.QtWidgets import (
+    QDialogButtonBox, QPushButton, QLineEdit,
+    QFileDialog, QTableView, QAbstractItemView,
+    QUndoStack, QShortcut, QAction, QItemDelegate,
+    QComboBox,
+)
+
+from View.Tools.PamhyrTable import PamhyrTableModel
+
+from View.D90AdisTS.UndoCommand import (
+    SetCommand,
+)
+
+logger = logging.getLogger()
+
+_translate = QCoreApplication.translate
+
+class D90TableDefaultModel(PamhyrTableModel):
+    def __init__(self, **kwargs):
+        super(D90TableDefaultModel, self).__init__(**kwargs)
+
+    def data(self, index, role):
+        if role != Qt.ItemDataRole.DisplayRole:
+            return QVariant()
+
+        row = index.row()
+        column = index.column()
+
+        if self._headers[column] is "name":
+            return self._data[row].name
+        elif self._headers[column] is "d90":
+            n = self._data[row].d90
+            if n is None:
+                return self._trad['not_associated']
+            return n
+
+        return QVariant()
+
+    def setData(self, index, value, role=Qt.EditRole):
+        if not index.isValid() or role != Qt.EditRole:
+            return False
+
+        row = index.row()
+        column = index.column()
+
+        try:
+            if self._headers[column] is not None:
+                self._undo.push(
+                    SetCommand(
+                        self._data, row, self._headers[column], value
+                    )
+                )
+        except Exception as e:
+            logger.info(e)
+            logger.debug(traceback.format_exc())
+
+        self.dataChanged.emit(index, index)
+        return True
+
+    def undo(self):
+        self._undo.undo()
+        self.layoutChanged.emit()
+
+    def redo(self):
+        self._undo.redo()
+        self.layoutChanged.emit()
+
diff --git a/src/View/DIFAdisTS/UndoCommand.py b/src/View/DIFAdisTS/UndoCommand.py
new file mode 100644
index 0000000000000000000000000000000000000000..f0644955f804a69300d441ff4787ac60a377ab7d
--- /dev/null
+++ b/src/View/DIFAdisTS/UndoCommand.py
@@ -0,0 +1,150 @@
+# UndoCommand.py -- Pamhyr
+# Copyright (C) 2023-2024  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+from copy import deepcopy
+from tools import trace, timer
+
+from PyQt5.QtWidgets import (
+    QMessageBox, QUndoCommand, QUndoStack,
+)
+
+from Model.D90AdisTS.D90AdisTS import D90AdisTS
+from Model.D90AdisTS.D90AdisTSList import D90AdisTSList
+
+
+class SetCommand(QUndoCommand):
+    def __init__(self, data, row, column, new_value):
+        QUndoCommand.__init__(self)
+
+        self._data = data
+        self._row = row
+        self._column = column
+
+        if self._column == "name":
+            self._old = self._data[self._row].name
+        elif self._column == "d90":
+            self._old = self._data[self._row].d90
+
+        _type = float
+        if column == "name":
+            _type = str
+
+        self._new = _type(new_value)
+
+    def undo(self):
+        if self._column == "name":
+            self._data[self._row].name = self._old
+        elif self._column == "d90":
+            self._data[self._row].d90 = self._old
+
+    def redo(self):
+        if self._column == "name":
+            self._data[self._row].name = self._new
+        elif self._column == "d90":
+            self._data[self._row].d90 = self._new
+
+class SetCommandSpec(QUndoCommand):
+    def __init__(self, data, row, column, new_value):
+        QUndoCommand.__init__(self)
+
+        self._data = data
+        self._row = row
+        self._column = column
+
+        if self._column == "name":
+            self._old = self._data[self._row].name
+        elif self._column == "reach":
+            self._old = self._data[self._row].reach
+        elif self._column == "start_kp":
+            self._old = self._data[self._row].start_kp
+        elif self._column == "end_kp":
+            self._old = self._data[self._row].end_kp
+        elif self._column == "d90":
+            self._old = self._data[self._row].d90
+
+        _type = float
+        if column == "name":
+            _type = str
+        elif column == "reach":
+            _type = int
+
+        self._new = _type(new_value)
+
+    def undo(self):
+        if self._column == "name":
+            self._data[self._row].name = self._old
+        elif self._column == "reach":
+            self._data[self._row].reach = self._old
+        elif self._column == "start_kp":
+            self._data[self._row].start_kp = self._old
+        elif self._column == "end_kp":
+            self._data[self._row].end_kp = self._old
+        elif self._column == "d90":
+            self._data[self._row].d90 = self._old
+
+    def redo(self):
+        if self._column == "name":
+            self._data[self._row].name = self._new
+        elif self._column == "reach":
+            self._data[self._row].reach = self._new
+        elif self._column == "start_kp":
+            self._data[self._row].start_kp = self._new
+        elif self._column == "end_kp":
+            self._data[self._row].end_kp = self._new
+        elif self._column == "d90":
+            self._data[self._row].d90 = self._new
+
+class AddCommand(QUndoCommand):
+    def __init__(self, data, ics_spec, index):
+        QUndoCommand.__init__(self)
+
+        self._data = data
+        self._ics_spec = ics_spec
+        self._index = index
+        self._new = None
+
+    def undo(self):
+        self._data.delete_i([self._index])
+
+    def redo(self):
+        if self._new is None:
+            self._new = self._data.new(self._index)
+        else:
+            self._data.insert(self._index, self._new)
+
+class DelCommand(QUndoCommand):
+    def __init__(self, data, ics_spec, rows):
+        QUndoCommand.__init__(self)
+
+        self._data = data
+        self._ics_spec = ics_spec
+        self._rows = rows
+        #self._data = data
+
+        self._ic = []
+        for row in rows:
+            self._ic.append((row, self._ics_spec[row]))
+        self._ic.sort()
+
+    def undo(self):
+        for row, el in self._ic:
+            self._data.insert(row, el)
+
+    def redo(self):
+        self._data.delete_i(self._rows)
+
diff --git a/src/View/DIFAdisTS/Window.py b/src/View/DIFAdisTS/Window.py
new file mode 100644
index 0000000000000000000000000000000000000000..5fffc17d68a61d9e2134c39fe9996a4f3a33c576
--- /dev/null
+++ b/src/View/DIFAdisTS/Window.py
@@ -0,0 +1,283 @@
+# Window.py -- Pamhyr
+# Copyright (C) 2023-2024  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+import os
+import logging
+
+from tools import trace, timer, logger_exception
+
+from View.Tools.PamhyrWindow import PamhyrWindow
+
+from PyQt5.QtGui import (
+    QKeySequence, QIcon,
+)
+
+from PyQt5.QtCore import (
+    Qt, QVariant, QAbstractTableModel,
+    QCoreApplication, QModelIndex, pyqtSlot,
+    QRect, QItemSelectionModel,
+)
+
+from PyQt5.QtWidgets import (
+    QDialogButtonBox, QPushButton, QLineEdit,
+    QFileDialog, QTableView, QAbstractItemView,
+    QUndoStack, QShortcut, QAction, QItemDelegate,
+    QComboBox, QVBoxLayout, QHeaderView, QTabWidget,
+    QVBoxLayout, QToolBar, QAction, QToolButton,
+)
+
+from Modules import Modules
+
+from View.InitialConditionsAdisTS.UndoCommand import (
+    SetCommand,
+)
+
+from View.D90AdisTS.TableDefault import (
+    D90TableDefaultModel,
+)
+
+from View.D90AdisTS.Table import (
+    D90TableModel, ComboBoxDelegate,
+)
+
+from View.D90AdisTS.translate import D90AdisTSTranslate
+
+from Solver.Mage import Mage8
+
+_translate = QCoreApplication.translate
+
+logger = logging.getLogger()
+
+
+class D90AdisTSWindow(PamhyrWindow):
+    _pamhyr_ui = "D90AdisTS"
+    _pamhyr_name = "D90 AdisTS"
+
+    def __init__(self, data=None, study=None, config=None, parent=None):
+        self._data = []
+        self._data.append(data)
+        trad = D90AdisTSTranslate()
+
+        name = (
+            trad[self._pamhyr_name] +
+            " - " + study.name +
+            " - " + self._data[0].name
+        )
+
+        super(D90AdisTSWindow, self).__init__(
+            title=name,
+            study=study,
+            config=config,
+            trad=trad,
+            parent=parent
+        )
+
+        self._hash_data.append(data)
+
+        self._d90_adists_lst = study.river.d90_adists
+
+        self.setup_table()
+
+        self.ui.setWindowTitle(self._title)
+
+    def setup_table(self):
+
+        path_icons = os.path.join(self._get_ui_directory(), f"ressources")
+
+        table_default = self.find(QTableView, f"tableView")
+
+        self._table = D90TableDefaultModel(
+            table_view=table_default,
+            table_headers=self._trad.get_dict("table_headers"),
+            editable_headers=["name", "d90"],
+            delegates={},
+            data=self._data,
+            undo=self._undo_stack,
+            trad=self._trad
+        )
+
+        table_default.setModel(self._table)
+        table_default.setSelectionBehavior(QAbstractItemView.SelectRows)
+        table_default.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
+        table_default.setAlternatingRowColors(True)
+
+        layout = self.find(QVBoxLayout, f"verticalLayout_1")
+        toolBar = QToolBar()
+        layout.addWidget(toolBar)
+
+        action_add = QAction(self)
+        action_add.setIcon(QIcon(os.path.join(path_icons, f"add.png")))
+        action_add.triggered.connect(self.add)
+        action_delete = QAction(self)
+        action_delete.setIcon(QIcon(os.path.join(path_icons, f"del.png")))
+        action_delete.triggered.connect(self.delete)
+
+        toolBar.addAction(action_add)
+        toolBar.addAction(action_delete)
+
+        self.table_spec = QTableView()
+        layout.addWidget(self.table_spec)
+
+        self._delegate_reach = ComboBoxDelegate(
+            trad=self._trad,
+            data=self._study.river,
+            ic_spec_lst=self._data[0]._data,
+            parent=self,
+            mode="reaches"
+        )
+        self._delegate_kp = ComboBoxDelegate(
+            trad=self._trad,
+            data=self._study.river,
+            ic_spec_lst=self._data[0]._data,
+            parent=self,
+            mode="kp"
+        )
+
+        self._table_spec = D90TableModel(
+            table_view=self.table_spec,
+            table_headers=self._trad.get_dict("table_headers_spec"),
+            editable_headers=["name", "reach", "start_kp", "end_kp", "d90"],
+            delegates={
+                "reach": self._delegate_reach,
+                "start_kp": self._delegate_kp,
+                "end_kp": self._delegate_kp
+            },
+            data=self._data[0],
+            undo=self._undo_stack,
+            trad=self._trad,
+            river=self._study.river
+        )
+
+        self.table_spec.setModel(self._table_spec)
+        self.table_spec.setSelectionBehavior(QAbstractItemView.SelectRows)
+        self.table_spec.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
+        self.table_spec.setAlternatingRowColors(True)
+
+        selectionModel = self.table_spec.selectionModel()
+        index = self.table_spec.model().index(0, 0)
+
+        selectionModel.select(
+            index,
+            QItemSelectionModel.Rows |
+            QItemSelectionModel.ClearAndSelect |
+            QItemSelectionModel.Select
+        )
+        self.table_spec.scrollTo(index)
+
+    def index_selected_row(self):
+        #table = self.find(QTableView, f"tableView")
+        table = self.table_spec
+        rows = table.selectionModel()\
+                    .selectedRows()
+
+        if len(rows) == 0:
+            return 0
+
+        return rows[0].row()
+
+    def index_selected_rows(self):
+        #table = self.find(QTableView, f"tableView")
+        table = self.table_spec
+        return list(
+            # Delete duplicate
+            set(
+                map(
+                    lambda i: i.row(),
+                    table.selectedIndexes()
+                )
+            )
+        )
+
+    def move_up(self):
+        row = self.index_selected_row()
+        self._table.move_up(row)
+        self._update()
+
+    def move_down(self):
+        row = self.index_selected_row()
+        self._table.move_down(row)
+        self._update()
+
+    def _copy(self):
+        rows = list(
+            map(
+                lambda row: row.row(),
+                self.tableView.selectionModel().selectedRows()
+            )
+        )
+
+        table = list(
+            map(
+                lambda eic: list(
+                    map(
+                        lambda k: eic[1][k],
+                        ["kp", "discharge", "elevation"]
+                    )
+                ),
+                filter(
+                    lambda eic: eic[0] in rows,
+                    enumerate(self._ics.lst())
+                )
+            )
+        )
+
+        self.copyTableIntoClipboard(table)
+
+    def _paste(self):
+        header, data = self.parseClipboardTable()
+
+        if len(data) + len(header) == 0:
+            return
+
+        logger.debug(
+            "IC: Paste: " +
+            f"header = {header}, " +
+            f"data = {data}"
+        )
+
+        try:
+            row = self.index_selected_row()
+            # self._table.paste(row, header, data)
+            self._table.paste(row, [], data)
+        except Exception as e:
+            logger_exception(e)
+
+        self._update()
+
+    def _undo(self):
+        self._table.undo()
+        self._update()
+
+    def _redo(self):
+        self._table.redo()
+        self._update()
+
+    def add(self):
+        rows = self.index_selected_rows()
+        if len(self._data[0]._data) == 0 or len(rows) == 0:
+            self._table_spec.add(0)
+        else:
+            self._table_spec.add(rows[0])
+
+    def delete(self):
+        print("del")
+        rows = self.index_selected_rows()
+        if len(rows) == 0:
+            print("len 0")
+            return
+        self._table_spec.delete(rows)
diff --git a/src/View/DIFAdisTS/translate.py b/src/View/DIFAdisTS/translate.py
new file mode 100644
index 0000000000000000000000000000000000000000..5a7bbd755d514a6d628c3828d95883296bf13d95
--- /dev/null
+++ b/src/View/DIFAdisTS/translate.py
@@ -0,0 +1,46 @@
+# translate.py -- Pamhyr
+# Copyright (C) 2023-2024  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+from PyQt5.QtCore import QCoreApplication
+
+from View.Translate import MainTranslate
+
+_translate = QCoreApplication.translate
+
+
+class D90AdisTSTranslate(MainTranslate):
+    def __init__(self):
+        super(D90AdisTSTranslate, self).__init__()
+
+        self._dict["D90 AdisTS"] = _translate(
+            "D90AdisTS", "D90 AdisTS")
+
+        self._dict["kp"] = self._dict["unit_kp"]
+
+        self._sub_dict["table_headers"] = {
+            "name": self._dict["name"],
+            "d90": _translate("Unit", "D90"),
+        }
+
+        self._sub_dict["table_headers_spec"] = {
+            "name": self._dict["name"],
+            "reach": self._dict["reach"],
+            "start_kp": _translate("Unit", "Start_KP (m)"),
+            "end_kp": _translate("Unit", "End_KP (m)"),
+            "d90": _translate("Unit", "D90"),
+        }
diff --git a/src/View/MainWindow.py b/src/View/MainWindow.py
index c61fae9072100a0ec3c1e952ffa67fe2cb8f2209..ddca58d6bd50fb6c88b20d58dd96d30a14e9447c 100644
--- a/src/View/MainWindow.py
+++ b/src/View/MainWindow.py
@@ -78,6 +78,7 @@ from View.Debug.Window import ReplWindow
 from View.OutputKpAdisTS.Window import OutputKpAdisTSWindow
 from View.Pollutants.Window import PollutantsWindow
 from View.D90AdisTS.Window import D90AdisTSWindow
+from View.DIFAdisTS.Window import D90AdisTSWindow
 
 # Optional internal display of documentation for make the application
 # package lighter...
@@ -123,7 +124,7 @@ define_model_action = [
     "action_menu_boundary_conditions_sediment",
     "action_menu_rep_additional_lines", "action_menu_output_kp",
     "action_menu_run_adists", "action_menu_pollutants",
-    "action_menu_d90",
+    "action_menu_d90", "action_menu_dif",
 ]
 
 action = (
@@ -237,6 +238,7 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
         """
         actions = {
             # Menu action
+            "action_menu_dif": self.open_dif,
             "action_menu_d90": self.open_d90,
             "action_menu_pollutants": self.open_pollutants,
             "action_menu_run_adists":self.run_solver_adists,
@@ -888,6 +890,25 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
         )
         D90AdisTS.show()
 
+    def open_dif(self):
+        if len(self._study.river.d90_adists.lst) != 0:
+            d90_default = self._study.river.d90_adists.lst[0]
+        else:
+            d90_default = self._study.river.d90_adists.new(0)
+
+        if self.sub_window_exists(
+            D90AdisTSWindow,
+            data=[self._study, None, d90_default]
+        ):
+            return
+
+        D90AdisTS = D90AdisTSWindow(
+            study=self._study,
+            parent=self,
+            data=d90_default
+        )
+        D90AdisTS.show()
+
     def open_pollutants(self):
         if self.sub_window_exists(
             PollutantsWindow,
diff --git a/src/View/ui/MainWindow.ui b/src/View/ui/MainWindow.ui
index 842e220a6ea27679719f9ddcbe2890e64f8db161..c2bda3ebb0d78d3f0a76d722413cfe8c88a49a7b 100644
--- a/src/View/ui/MainWindow.ui
+++ b/src/View/ui/MainWindow.ui
@@ -220,6 +220,7 @@
     <addaction name="action_menu_output_kp"/>
     <addaction name="action_menu_pollutants"/>
     <addaction name="action_menu_d90"/>
+    <addaction name="action_menu_dif"/>
    </widget>
    <addaction name="menu_File"/>
    <addaction name="menu_network"/>
@@ -767,6 +768,11 @@
     <string>D90</string>
    </property>
   </action>
+  <action name="action_menu_dif">
+   <property name="text">
+    <string>DIF</string>
+   </property>
+  </action>
  </widget>
  <resources/>
  <connections>