diff --git a/src/Meshing/Mage.py b/src/Meshing/Mage.py
index cd4e577f8cd92160d5fb7489828b230d49680d9d..393de9c495085c9f6dbc16df016e2a0bb1b8ce1d 100644
--- a/src/Meshing/Mage.py
+++ b/src/Meshing/Mage.py
@@ -293,6 +293,7 @@ class MeshingWithMageMailleurTT(AMeshingTool):
     def meshing(self, reach,
                 step: float = 50,
                 limites=[-1, -1],
+                origin=0,
                 directrices=['un', 'np'],
                 lplan: bool = False,
                 lm: int = 3,
@@ -310,27 +311,37 @@ class MeshingWithMageMailleurTT(AMeshingTool):
             proc = QProcess()
             proc.setWorkingDirectory(tmp)
 
+            # Mage section index start at 1
+            origin += 1
+            limites[0] += 1
+            limites[1] += 1
+
             lplan = 1 if lplan else 0
             linear = 1 if linear else 0
 
             logger.info(
-                f"! {self._exe_path()} {st_file} {m_file} " +
+                f"! {self._exe_path()} " +
+                f"{st_file} {m_file} " +
                 f"{str(step)} " +
                 f"{limites[0]} {limites[1]} " +
                 f"{directrices[0]} {directrices[1]} " +
-                f"{lplan} {lm} {linear}"
+                f"{lplan} {lm} {linear} " +
+                f"mesh {origin}"
             )
             proc.start(
                 self._exe_path(),
-                list(map(
-                    str,
-                    [
-                        st_file, m_file, step,
-                        limites[0], limites[1],
-                        directrices[0], directrices[1],
-                        lplan, lm, linear
-                    ]
-                ))
+                list(
+                    map(
+                        str,
+                        [
+                            st_file, m_file, step,
+                            limites[0], limites[1],
+                            directrices[0], directrices[1],
+                            lplan, lm, linear,
+                            "mesh", origin
+                        ]
+                    )
+                )
             )
             proc.waitForFinished()
 
@@ -347,9 +358,9 @@ class MeshingWithMageMailleurTT(AMeshingTool):
                 logger.error(
                     f"{logger_color_red()}{errors}{logger_color_reset()}"
                 )
-            else:
-                self.import_m_file(reach, m_file)
+                return reach
 
+            self.import_m_file(reach, m_file)
             return reach
 
     def export_reach_to_st(self, reach, tmp):
diff --git a/src/Model/Geometry/Reach.py b/src/Model/Geometry/Reach.py
index 9b2ecdc30883c0e2856694642d62ed5545e90f6b..04a75c919212d73483e51e75cc045be00238aedf 100644
--- a/src/Model/Geometry/Reach.py
+++ b/src/Model/Geometry/Reach.py
@@ -560,12 +560,20 @@ class Reach(SQLSubModel):
     # Import/Export
 
     def import_geometry(self, file_path_name: str):
-        if file_path_name.endswith(".st"):
-            return self.import_geometry_st(file_path_name)
-        elif file_path_name.endswith(".shp"):
-            return self.import_geometry_shp(file_path_name)
-        else:
-            return []
+        ext = file_path_name.split(".")
+        if len(ext) > 0:
+            ext = ext[-1].lower()
+
+            if ext in ['st', 'm']:
+                return self.import_geometry_st(file_path_name)
+
+            if ext in ['shp']:
+                return self.import_geometry_shp(file_path_name)
+
+        raise FileFormatError(
+            file_path_name,
+            f"Geometry file extention ({ext}) unkown"
+        )
 
     @timer
     def import_geometry_shp(self, file_path_name: str):
diff --git a/src/View/Geometry/MeshingDialog.py b/src/View/Geometry/MeshingDialog.py
index 05a448464107302354b6017280d5ea9f94b1a373..7c7b385d0534a461f54a6aefcb60fd2b14580f64 100644
--- a/src/View/Geometry/MeshingDialog.py
+++ b/src/View/Geometry/MeshingDialog.py
@@ -58,6 +58,7 @@ class MeshingDialog(PamhyrDialog):
         self._end_cs = -1
         self._begin_dir = "un"
         self._end_dir = "np"
+        self._origin = self._reach.profile(0)
 
         self._init_default_values_profiles()
         self._init_default_values_guidelines()
@@ -76,7 +77,7 @@ class MeshingDialog(PamhyrDialog):
                 )
             )
         )
-        self.set_combobox_text("comboBox_lm", self._lm)
+        self.set_combobox_text("comboBox_lm", lm_dict[self._lm])
 
         if self._linear:
             self.set_radio_button("radioButton_linear", True)
@@ -88,6 +89,7 @@ class MeshingDialog(PamhyrDialog):
 
         self.combobox_add_items("comboBox_begin_kp", profiles)
         self.combobox_add_items("comboBox_end_kp", profiles)
+        self.combobox_add_items("comboBox_origin", profiles)
 
         self.set_combobox_text("comboBox_begin_kp", profiles[0])
         self.set_combobox_text("comboBox_end_kp", profiles[-1])
@@ -135,6 +137,10 @@ class MeshingDialog(PamhyrDialog):
     def lplan(self):
         return self._lplan
 
+    @property
+    def origin(self):
+        return self._origin
+
     @property
     def lm(self):
         return int(self._lm)
@@ -145,11 +151,11 @@ class MeshingDialog(PamhyrDialog):
 
     @property
     def begin_cs(self):
-        return self._begin_cs + 1
+        return self._begin_cs
 
     @property
     def end_cs(self):
-        return self._end_cs + 1
+        return self._end_cs
 
     @property
     def begin_dir(self):
@@ -171,6 +177,9 @@ class MeshingDialog(PamhyrDialog):
         self._begin_cs = self.profiles.index(p1)
         self._end_cs = self.profiles.index(p2)
 
+        origin = self.get_combobox_text("comboBox_origin")
+        self._origin = self.profiles.index(origin)
+
         self._begin_dir = self.get_combobox_text("comboBox_begin_gl")
         self._end_dir = self.get_combobox_text("comboBox_end_gl")
 
diff --git a/src/View/Geometry/Translate.py b/src/View/Geometry/Translate.py
index 23034fd51475dd711e868528cc381cc8963ecb90..4ee4fced37864785008f84d16954fe5ce24dea27 100644
--- a/src/View/Geometry/Translate.py
+++ b/src/View/Geometry/Translate.py
@@ -66,9 +66,9 @@ class GeometryTranslate(MainTranslate):
         }
 
         self._sub_dict["lm_dict"] = {
-            "1": _translate("Geometry", "First guideline"),
-            "2": _translate("Geometry", "Second guideline"),
-            "3": _translate("Geometry", "Means between the two guideline"),
+            "1": _translate("Geometry", "the first guide-line"),
+            "2": _translate("Geometry", "the second guide-line"),
+            "3": _translate("Geometry", "the means between the two guide-lines"),
         }
 
         self._sub_dict["r_lm_dict"] = {}
diff --git a/src/View/Geometry/UndoCommand.py b/src/View/Geometry/UndoCommand.py
index 5c587c0122f99d52cc9486db4a4ce20b54fdba1f..3f21577d745bbfbf38dadb5ac1d590669c1439ae 100644
--- a/src/View/Geometry/UndoCommand.py
+++ b/src/View/Geometry/UndoCommand.py
@@ -26,6 +26,7 @@ from PyQt5.QtWidgets import (
 )
 
 from Model.Geometry import Reach
+from Model.Except import exception_message_box
 
 from Meshing.Mage import MeshingWithMage
 
@@ -209,8 +210,11 @@ class ImportCommand(QUndoCommand):
 
     def redo(self):
         if self._profiles is None:
-            self._profiles = self._reach.import_geometry(self._filename)
-            self._profiles.reverse()
+            try:
+                self._profiles = self._reach.import_geometry(self._filename)
+                self._profiles.reverse()
+            except Exception as e:
+                exception_message_box(e)
         else:
             for profile in self._profiles:
                 self._reach.insert_profile(self._row, profile)
diff --git a/src/View/Geometry/Window.py b/src/View/Geometry/Window.py
index 3631ff1003cd7dbc2541993ac2b92ce48e43376f..5e25bd31641975ddf54b1e8351d8dcb995754704 100644
--- a/src/View/Geometry/Window.py
+++ b/src/View/Geometry/Window.py
@@ -295,6 +295,7 @@ class GeometryWindow(PamhyrWindow):
                 data = {
                     "step": dlg.space_step,
                     "limites": [dlg.begin_cs, dlg.end_cs],
+                    "origin" : dlg.origin,
                     "directrices": [dlg.begin_dir, dlg.end_dir],
                     "lplan": dlg.lplan,
                     "lm": dlg.lm,
diff --git a/src/View/ui/MeshingOptions.ui b/src/View/ui/MeshingOptions.ui
index b2fe91f783423bcbd5c41244cbcde1fd69bf371b..01bd7a5393ae130fd86e00b088b1bd42119a837b 100644
--- a/src/View/ui/MeshingOptions.ui
+++ b/src/View/ui/MeshingOptions.ui
@@ -6,119 +6,28 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>512</width>
-    <height>288</height>
+    <width>608</width>
+    <height>342</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>Dialog</string>
   </property>
-  <layout class="QGridLayout" name="gridLayout_3">
-   <item row="0" column="0">
-    <widget class="QGroupBox" name="groupBox">
-     <property name="title">
-      <string>Limits</string>
+  <layout class="QGridLayout" name="gridLayout_4">
+   <item row="3" column="0">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
      </property>
-     <layout class="QGridLayout" name="gridLayout">
-      <item row="0" column="0">
-       <layout class="QHBoxLayout" name="horizontalLayout_3">
-        <item>
-         <layout class="QHBoxLayout" name="horizontalLayout">
-          <item>
-           <widget class="QLabel" name="label">
-            <property name="enabled">
-             <bool>true</bool>
-            </property>
-            <property name="text">
-             <string>First cross section</string>
-            </property>
-           </widget>
-          </item>
-          <item>
-           <widget class="QComboBox" name="comboBox_begin_kp">
-            <property name="enabled">
-             <bool>true</bool>
-            </property>
-           </widget>
-          </item>
-         </layout>
-        </item>
-        <item>
-         <layout class="QHBoxLayout" name="horizontalLayout_2">
-          <item>
-           <widget class="QLabel" name="label_2">
-            <property name="enabled">
-             <bool>true</bool>
-            </property>
-            <property name="text">
-             <string>Last cross section</string>
-            </property>
-           </widget>
-          </item>
-          <item>
-           <widget class="QComboBox" name="comboBox_end_kp">
-            <property name="enabled">
-             <bool>true</bool>
-            </property>
-           </widget>
-          </item>
-         </layout>
-        </item>
-       </layout>
-      </item>
-      <item row="1" column="0">
-       <layout class="QHBoxLayout" name="horizontalLayout_6">
-        <item>
-         <layout class="QHBoxLayout" name="horizontalLayout_7">
-          <item>
-           <widget class="QLabel" name="label_5">
-            <property name="enabled">
-             <bool>true</bool>
-            </property>
-            <property name="text">
-             <string>First guide line</string>
-            </property>
-           </widget>
-          </item>
-          <item>
-           <widget class="QComboBox" name="comboBox_begin_gl">
-            <property name="enabled">
-             <bool>true</bool>
-            </property>
-           </widget>
-          </item>
-         </layout>
-        </item>
-        <item>
-         <layout class="QHBoxLayout" name="horizontalLayout_8">
-          <item>
-           <widget class="QLabel" name="label_6">
-            <property name="enabled">
-             <bool>true</bool>
-            </property>
-            <property name="text">
-             <string>Last guide line</string>
-            </property>
-           </widget>
-          </item>
-          <item>
-           <widget class="QComboBox" name="comboBox_end_gl">
-            <property name="enabled">
-             <bool>true</bool>
-            </property>
-           </widget>
-          </item>
-         </layout>
-        </item>
-       </layout>
-      </item>
-     </layout>
     </widget>
    </item>
-   <item row="1" column="0">
+   <item row="2" column="0">
     <widget class="QGroupBox" name="groupBox_2">
      <property name="title">
-      <string>Options</string>
+      <string>Parameters</string>
      </property>
      <layout class="QGridLayout" name="gridLayout_2">
       <item row="0" column="0">
@@ -128,12 +37,12 @@
         </property>
        </widget>
       </item>
-      <item row="0" column="2">
+      <item row="0" column="1">
        <layout class="QHBoxLayout" name="horizontalLayout_5">
         <item>
          <widget class="QDoubleSpinBox" name="doubleSpinBox_space_step">
           <property name="maximum">
-           <double>9999.989999999999782</double>
+           <double>999999.989999999990687</double>
           </property>
           <property name="value">
            <double>50.000000000000000</double>
@@ -155,48 +64,14 @@
         </item>
        </layout>
       </item>
-      <item row="1" column="0" colspan="2">
-       <widget class="QLabel" name="label_4">
-        <property name="enabled">
-         <bool>true</bool>
-        </property>
-        <property name="text">
-         <string>Distance computation guild line</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="2">
-       <layout class="QHBoxLayout" name="horizontalLayout_9">
-        <item>
-         <widget class="QComboBox" name="comboBox_lm">
-          <property name="enabled">
-           <bool>true</bool>
-          </property>
-         </widget>
-        </item>
-        <item>
-         <spacer name="horizontalSpacer_3">
-          <property name="orientation">
-           <enum>Qt::Horizontal</enum>
-          </property>
-          <property name="sizeHint" stdset="0">
-           <size>
-            <width>40</width>
-            <height>20</height>
-           </size>
-          </property>
-         </spacer>
-        </item>
-       </layout>
-      </item>
-      <item row="2" column="0">
+      <item row="1" column="0">
        <widget class="QLabel" name="label_7">
         <property name="text">
          <string>Type of interpolation:</string>
         </property>
        </widget>
       </item>
-      <item row="2" column="2">
+      <item row="1" column="1">
        <layout class="QHBoxLayout" name="horizontalLayout_4">
         <item>
          <widget class="QRadioButton" name="radioButton_spline">
@@ -233,14 +108,129 @@
      </layout>
     </widget>
    </item>
-   <item row="2" column="0">
-    <widget class="QDialogButtonBox" name="buttonBox">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
+   <item row="0" column="0">
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>Limits</string>
      </property>
-     <property name="standardButtons">
-      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="0" column="0">
+       <layout class="QHBoxLayout" name="horizontalLayout_3">
+        <item>
+         <layout class="QHBoxLayout" name="horizontalLayout">
+          <item>
+           <widget class="QLabel" name="label">
+            <property name="enabled">
+             <bool>true</bool>
+            </property>
+            <property name="text">
+             <string>First cross section</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QComboBox" name="comboBox_begin_kp">
+            <property name="enabled">
+             <bool>true</bool>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </item>
+        <item>
+         <layout class="QHBoxLayout" name="horizontalLayout_2">
+          <item>
+           <widget class="QLabel" name="label_2">
+            <property name="enabled">
+             <bool>true</bool>
+            </property>
+            <property name="text">
+             <string>Last cross section</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QComboBox" name="comboBox_end_kp">
+            <property name="enabled">
+             <bool>true</bool>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </item>
+       </layout>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <widget class="QGroupBox" name="groupBox_3">
+     <property name="title">
+      <string>Distance computation</string>
      </property>
+     <layout class="QGridLayout" name="gridLayout_3">
+      <item row="0" column="0">
+       <widget class="QLabel" name="label_8">
+        <property name="text">
+         <string>Original section</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QComboBox" name="comboBox_origin"/>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="label_5">
+        <property name="enabled">
+         <bool>true</bool>
+        </property>
+        <property name="text">
+         <string>First guide-line</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QComboBox" name="comboBox_begin_gl">
+        <property name="enabled">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="2">
+       <widget class="QLabel" name="label_6">
+        <property name="enabled">
+         <bool>true</bool>
+        </property>
+        <property name="text">
+         <string>Second guide-line</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="3">
+       <widget class="QComboBox" name="comboBox_end_gl">
+        <property name="enabled">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <widget class="QLabel" name="label_4">
+        <property name="enabled">
+         <bool>true</bool>
+        </property>
+        <property name="text">
+         <string>Takes</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="QComboBox" name="comboBox_lm">
+        <property name="enabled">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+     </layout>
     </widget>
    </item>
   </layout>