You can make create the same functionality easily with the Floating Group.
- Set the FG to “align to parent”.
- Make it not fit height nor width so it fills the page.
- Create 2 groups, 1 for whatever UI and another just an empty group.
- Make sure the empty one is “at the back”.
- Create a WF when user clicks the empty group, hide floating group.
- Make sure the floating group is set to “collapse when hidden” so it doesn’t block any clicks.
Instead of hiding the floating group you can instead hide the empty group and shrink your UI group. Just make sure the floating group’s width is adjusted also or it will block clicks.