build pop menu item variou modifi function design easili extend item param item bitwis item root leaf activ menu item object build modifi pop item argo menu modifi menu argo menu menu popup modifi item modifi menu add check item action modifi owner item leaf modifi menu add check item action modifi leaf owner item root modifi menu add check item action modifi root owner item activ modifi menu add check item action modifi activ owner modifi menu 