todo text copi adapt set target old target uml element remov model element listen list target target uml element model ad element listen target function call user chang target result uml model chang function look lot like uml combo box model possibl futur extens allow listen model element param target target set target object target target target fig fig target owner target model facad auml element target model pump remov model event listen target properti allow listen element remov model event listen list target model facad auml element target target target model pump add model event listen target properti allow listen element add model event listen list target contain tab target tab target contain refresh target 