diff --git a/tryton/gui/window/view_form/view/form_gtk/many2many.py b/tryton/gui/window/view_form/view/form_gtk/many2many.py
index 81d9929b91..56f803735f 100644
--- a/tryton/gui/window/view_form/view/form_gtk/many2many.py
+++ b/tryton/gui/window/view_form/view/form_gtk/many2many.py
@@ -112,14 +112,15 @@ class Many2Many(WidgetInterface):
             activate_keys.append(gtk.keysyms.Return)
         if event.keyval == gtk.keysyms.F3:
             self._sig_add()
-            return False
+            return True
         if event.keyval == gtk.keysyms.F2 \
                 and widget == self.screen.widget:
             self._sig_edit()
+            return True
         if event.keyval in (gtk.keysyms.Delete, gtk.keysyms.KP_Delete) \
                 and widget == self.screen.widget:
             self._sig_remove()
-            return False
+            return True
         if (widget == self.wid_text
                 and event.keyval in activate_keys
                 and editable
diff --git a/tryton/gui/window/view_form/view/form_gtk/one2many.py b/tryton/gui/window/view_form/view/form_gtk/one2many.py
index 0611d022bd..18daa19be1 100644
--- a/tryton/gui/window/view_form/view/form_gtk/one2many.py
+++ b/tryton/gui/window/view_form/view/form_gtk/one2many.py
@@ -203,19 +203,19 @@ class One2Many(WidgetInterface):
         if (event.keyval == gtk.keysyms.F3) \
                 and self.but_new.get_property('sensitive'):
             self._sig_new(widget)
-            return False
+            return True
         if event.keyval == gtk.keysyms.F2 \
                 and widget == self.screen.widget:
             self._sig_edit(widget)
-            return False
+            return True
         if (event.keyval in (gtk.keysyms.Delete, gtk.keysyms.KP_Delete)
                 and widget == self.screen.widget
                 and self.but_del.get_property('sensitive')):
             self._sig_remove(widget)
-            return False
+            return True
         if event.keyval == gtk.keysyms.Insert and widget == self.screen.widget:
             self._sig_undelete(widget)
-            return False
+            return True
         if self.attrs.get('add_remove'):
             editable = self.wid_text.get_editable()
             activate_keys = [gtk.keysyms.Tab, gtk.keysyms.ISO_Left_Tab]