+MultiActor *multiactor_init(gchar * name, GSList * child, gint x, gint y, gint z, double scale, gboolean visible);
+void multiactor_set_visible(MultiActor *ma, gboolean visible);
+void multiactor_set_scale(MultiActor *ma, double scale);
+void multiactor_set_position(MultiActor *ma, gint dx, gint dy, gint dz);
+void actor_set_position_full(GtkWidget *actor, gint x, gint y, gint z);
+
+