modify

# in orm.py

def fields_view_get(self, cr, user, view_id=None, view_type='form', context=None, toolbar=False, submenu=False):

.....


override this that function to modify this

detail
 Get the detailed composition of the requested view like fields, model, view architecture

        :param cr: database cursor
        :param user: current user id
        :param view_id: id of the view or None
        :param view_type: type of the view to return if view_id is None ('form', tree', ...)
        :param context: context arguments, like lang, time zone
        :param toolbar: true to include contextual actions
        :param submenu: deprecated
        :return: dictionary describing the composition of the requested view (including inherited views and extensions)
        :raise AttributeError:
                            * if the inherited view has unknown position to work with other than 'before', 'after', 'inside', 'replace'
                            * if some tag other than 'position' is found in parent view
        :raise Invalid ArchitectureError: if there is view type other than form, tree, calendar, search etc defined on the structure

        """