diff --git a/src/View/Geometry/Window.py b/src/View/Geometry/Window.py
index 0827a094..5f3ad301 100644
--- a/src/View/Geometry/Window.py
+++ b/src/View/Geometry/Window.py
@@ -314,6 +314,10 @@ class GeometryWindow(PamhyrWindow):
                 trad=self._trad,
                 parent=self
             )
+            dlg.adjustSize()
+            dialog_geometry = dlg.frameGeometry()
+            dialog_geometry.moveCenter(self.frameGeometry().center())
+            dlg.move(dialog_geometry.topLeft())
             if dlg.exec():
                 data = {
                     "step": dlg.space_step,
diff --git a/src/View/MainWindow.py b/src/View/MainWindow.py
index 1e5d3a88..05db840a 100644
--- a/src/View/MainWindow.py
+++ b/src/View/MainWindow.py
@@ -175,6 +175,7 @@ define_model_action = [
     "action_menu_rep_additional_lines",
     "action_menu_run_adists", "action_menu_pollutants",
     "action_menu_d90", "action_menu_dif", "action_menu_edit_geotiff",
+    "action_menu_meshing",
     "action_menu_boundary_conditions_temperature",
     "action_menu_initial_conditions_temperature",
     "action_menu_weather_parameters", "action_menu_run_adistt",
@@ -310,6 +311,7 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
             "action_menu_edit_scenarios": self.open_scenarios,
             "action_menu_edit_network": self.open_network,
             "action_menu_edit_geometry": self.open_geometry,
+            "action_menu_meshing": self.open_meshing,
             "action_menu_boundary_conditions": self.open_boundary_cond,
             "action_menu_boundary_conditions_sediment":
             self.open_boundary_cond_sed,
@@ -351,6 +353,7 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
             # Current actions
             "action_toolBar_network": self.open_network,
             "action_toolBar_geometry": self.open_geometry,
+            "action_toolBar_meshing": self.open_meshing,
             "action_toolBar_boundary_cond": self.open_boundary_cond,
             "action_toolBar_lateral_contrib": self.open_lateral_contrib,
             "action_toolBar_frictions": self.open_frictions,
@@ -1339,7 +1342,10 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
                 GeometryWindow,
                 data=[self._study, self.conf, reach]
             ):
-                return
+                return self.get_sub_window(
+                    GeometryWindow,
+                    data=[self._study, self.conf, reach]
+                )
 
             geometry = GeometryWindow(
                 study=self._study,
@@ -1348,8 +1354,21 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
                 parent=self
             )
             geometry.show()
+            return geometry
         else:
             self.msg_select_reach()
+            return None
+
+    def open_meshing(self):
+        """Open the current reach geometry and its meshing dialog."""
+        geometry = self.open_geometry()
+        if geometry is None or self._study.is_read_only():
+            return
+
+        geometry.raise_()
+        geometry.activateWindow()
+        QApplication.processEvents()
+        geometry.edit_meshing()
 
     def open_boundary_cond_sed(self):
         self.open_boundary_cond(tab=1)
diff --git a/src/View/ui/MainWindow.ui b/src/View/ui/MainWindow.ui
index 4d13ceb6..683f68b5 100644
--- a/src/View/ui/MainWindow.ui
+++ b/src/View/ui/MainWindow.ui
@@ -19,6 +19,7 @@
   <property name="font">
    <font>
     <family>Serif</family>
+    <weight>75</weight>
     <bold>true</bold>
     <kerning>false</kerning>
    </font>
@@ -64,6 +65,7 @@
       <property name="font">
        <font>
         <family>Ubuntu</family>
+        <weight>50</weight>
         <bold>false</bold>
         <kerning>false</kerning>
        </font>
@@ -87,6 +89,7 @@
    <property name="font">
     <font>
      <family>Sans Serif</family>
+     <weight>50</weight>
      <bold>false</bold>
      <kerning>false</kerning>
     </font>
@@ -126,6 +129,7 @@
      <string>&amp;Geometry</string>
     </property>
     <addaction name="action_menu_edit_geometry"/>
+    <addaction name="action_menu_meshing"/>
     <addaction name="action_menu_edit_geotiff"/>
    </widget>
    <widget class="QMenu" name="menu_run">
@@ -257,6 +261,7 @@
    <property name="font">
     <font>
      <family>Ubuntu</family>
+     <weight>50</weight>
      <bold>false</bold>
      <kerning>false</kerning>
     </font>
@@ -275,6 +280,7 @@
    <property name="font">
     <font>
      <family>Sans Serif</family>
+     <weight>50</weight>
      <bold>false</bold>
      <kerning>true</kerning>
     </font>
@@ -325,6 +331,7 @@
    <property name="font">
     <font>
      <family>Ubuntu</family>
+     <weight>50</weight>
      <bold>false</bold>
      <kerning>false</kerning>
     </font>
@@ -346,6 +353,7 @@
    </attribute>
    <addaction name="action_toolBar_network"/>
    <addaction name="action_toolBar_geometry"/>
+   <addaction name="action_toolBar_meshing"/>
    <addaction name="action_toolBar_boundary_cond"/>
    <addaction name="action_toolBar_lateral_contrib"/>
    <addaction name="action_toolBar_frictions"/>
@@ -866,6 +874,30 @@
     <string>Open results temperature</string>
    </property>
   </action>
+  <action name="action_menu_meshing">
+   <property name="icon">
+    <iconset>
+     <normaloff>ressources/meshing.png</normaloff>ressources/meshing.png</iconset>
+   </property>
+   <property name="text">
+    <string>Meshing</string>
+   </property>
+  </action>
+  <action name="action_toolBar_meshing">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="icon">
+    <iconset>
+     <normaloff>ressources/meshing.png</normaloff>ressources/meshing.png</iconset>
+   </property>
+   <property name="text">
+    <string>Meshing</string>
+   </property>
+   <property name="toolTip">
+    <string>Mesh geometry</string>
+   </property>
+  </action>
  </widget>
  <resources/>
  <connections>