attempt build menu item creat given model element type relat betwen exist model element succes menu item ad given menu param meta type type model element menu item creat param sourc sourc model element param dest destin model element param relationship descr textual descript describ sourc relat dest param menu menu menu item ad build direct creat menu item object meta type object sourc object dest relationship descr menu menu model uml factori connect valid meta type sourc dest menu item menu item menu item action creat edg model element meta type sourc dest relationship descr menu item menu add menu item 