diff -r 41be9387cb3b openerp-client/widget/view/form_gtk/one2many_list.py
--- a/openerp-client/widget/view/form_gtk/one2many_list.py	Thu Apr 14 12:22:13 2011 +0200
+++ b/openerp-client/widget/view/form_gtk/one2many_list.py	Fri Apr 15 11:45:26 2011 +0200
@@ -78,6 +78,12 @@
         self.but_save_new.set_image(icon)
         self.but_save_new.add_accelerator('clicked', self.accel_group, gtk.keysyms.Return, gtk.gdk.CONTROL_MASK, gtk.ACCEL_VISIBLE)

+        self.but_copy_new = self.dia.add_button(_('Save & Copy'), gtk.RESPONSE_ACCEPT)
+        icon = gtk.Image()
+        icon.set_from_stock(gtk.STOCK_COPY, gtk.ICON_SIZE_BUTTON)
+        self.but_copy_new.set_image(icon)
+        self.but_copy_new.add_accelerator('clicked', self.accel_group, gtk.keysyms.KP_Add, gtk.gdk.CONTROL_MASK, gtk.ACCEL_VISIBLE)
+
         self.context = context

         scroll = gtk.ScrolledWindow()
@@ -114,8 +120,10 @@
         self.screen.readonly = readonly
         self.screen.display()

-    def new(self):
+    def new(self, values=None):
         model = self.screen.new(context=self.context)
+        if values:
+            model.set_default(values)
         self.screen.models.model_add(model)
         self.screen.current_model = model
         self.screen.make_buttons_readonly()
@@ -127,12 +135,12 @@
             res = self.dia.run()
             if res in(gtk.RESPONSE_CANCEL, gtk.RESPONSE_DELETE_EVENT):
                 self.screen.current_model.cancel()
-            end = (res not in (gtk.RESPONSE_OK, gtk.RESPONSE_APPLY)) or self.screen.current_model.validate()
+            end = (res not in (gtk.RESPONSE_OK, gtk.RESPONSE_APPLY, gtk.RESPONSE_ACCEPT)) or self.screen.current_model.validate()
             if not end:
                 self.screen.display()
                 self.screen.current_view.set_cursor()

-        if res in (gtk.RESPONSE_OK, gtk.RESPONSE_APPLY) :
+        if res in (gtk.RESPONSE_OK, gtk.RESPONSE_APPLY, gtk.RESPONSE_ACCEPT) :
             self.screen.current_view.set_value()
             model = self.screen.current_model
             if res == gtk.RESPONSE_APPLY:
@@ -323,7 +331,12 @@
                 dia = dialog(self.attrs['relation'], parent=self._view.model, attrs=self.attrs, model_ctx=self.screen.models._context, window=self._window, readonly=self._readonly, context=ctx)
                 while ok:
                     ok, value, res = dia.run()
-                    if ok or res == gtk.RESPONSE_APPLY:
+                    if res == gtk.RESPONSE_ACCEPT:
+                        self.screen.models.model_add(value)
+                        value.signal('record-changed', value.parent)
+                        dia.new(value.value)
+                        self.screen.display()
+                    elif ok or res == gtk.RESPONSE_APPLY:
                         self.screen.models.model_add(value)
                         value.signal('record-changed', value.parent)
                         self.screen.display()
@@ -343,6 +356,8 @@
                 ok, value, res = dia.run()
                 if res == gtk.RESPONSE_OK:
                     dia.new()
+                if res == gtk.RESPONSE_ACCEPT:
+                    dia.new(value.value)
                 if value and value != edited_model:
                     self.screen.models.model_add(value)
                     value.signal('record-changed', value.parent)