Hi,
Took a while to figure out what you meant, sometimes a code example, screenshot, or reference to documentation helps.
I think what you are referring to, StartMenuGroup has a disabled attribute
https://4js.com/online_documentation/fjs-fgl-manual-html/#c_fgl_startmenus_003.htmlwhereas TopMenuGroup does not have a disabled attribute
https://4js.com/online_documentation/fjs-fgl-manual-html/#c_fgl_topmenus_003.htmland what you are trying to do is disable a TopMenuGroup. I don't think what you are trying to do is currently possible. What do you expect to happen if an action in that particular group is still active?
Reuben