Resize floating-group when hidable-group within closes

I have a floating group on top of the page which shows some general info.

I created an hidable group within that floating-group which appears only when selecting an item in a repeating group on the page, this group shows the details of the selected item, how can i tell bubble to decrease the size of the Floating Group when a user closes the hidable group within?

That’s a tough one - do you have the hideable group set to collapse when it is hidden? If you do, and it doesn’t collapse…you might have to install a plugin like CSS Tools to modify the properties of the floating group.