action->set_param("canvas",subcanvas);
action->set_param("canvas_interface",get_canvas_interface());
action->set_param("layer",new_layer);
action->set_param("new_index",layers.front()->get_depth());
action->set_param("canvas",subcanvas);
action->set_param("canvas_interface",get_canvas_interface());
action->set_param("layer",new_layer);
action->set_param("new_index",layers.front()->get_depth());