Hi D, various solutions possible (if you do a search for floating group scrollable on the forum here). But what I do is put a group in the floating group and set that group to fixed 100% height + allow vertical scrolling when content overflows. In that group you put all of the elements / reusable’s etc.
Because this group is set to 100% percent height of the parent element, once the combined height of the elements inside it is greater than the height of the group, it will become scrollable.
For example:
Hope it helps!