home/en/Solver-configuration.md

+Open the configuration window _File > Pamhyr configuration_ and select the _Solvers_ tab.
+
+![Configuration window](https://gitlab.irstea.fr/theophile.terraz/pamhyr/-/raw/master/doc/images/wiki/config_window.png)
+
+By default, you must have a defined Mage solver, this version of mage is packaged with Pamhyr2 and can be used without any modification.  
+
+If you want to add a new solver, you can click ![add](https://gitlab.irstea.fr/theophile.terraz/pamhyr/-/raw/master/src/View/ui/ressources/gtk-add.png).
+
+A new window appears to configure the new solver:
+
+![Solver configuration window](https://gitlab.irstea.fr/theophile.terraz/pamhyr/-/raw/master/doc/images/wiki/solver_config_window.png)
+
+(1) The type of solver (modify the Pamhyr2 solver input/output export and import)
+(2) The solver name
+(3) A description of solver configuration
+(4) Command line configuration
+- Input formater (optional): Command line to transforme Pamhyr2 data output to the solver input data
+- Solver: Command line to execute the solver
+- Output formater (optional): Command line to transforme the solver results outputs to Pamhyr2 results input
+
+In the command line format text, you can use some replacement values like:
+- _@install_dir_: The Pamhyr2 install path
+- _@path_: The associate path
+- _@input_: Solver input data
+- _@output_: Solver output data
+- _@dir_: The working directory at solver execution
+- _@args_: Solver arguments and additional arguments defined on solver parameters
+
+
+If you want to delete a solver, you can click ![del](https://gitlab.irstea.fr/theophile.terraz/pamhyr/-/raw/master/src/View/ui/ressources/gtk-remove.png) or edit a solver with the edit ![edit](https://gitlab.irstea.fr/theophile.terraz/pamhyr/-/raw/master/src/View/ui/ressources/edit.png){height=20px} button.
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