I noticed that it is NOT possible to add Custom Components to an EnhancedGroup. Please make this possible.
The reason why this is important is because in my apps I use EnhancedGroups a lot as containers. So I basically have:
one screen with on there an EnhancedGroup (E1).
In E1 I have a Gallery (G1) which is a Menu (with as Items a table with menu options)
Also in E1 there are multiple EnhanchedGroups (say E2,E3,E4,E5). E2-E5 visibility is dependent on the G1 selected item.
Everyone of the groups E2-E5 has it's own role. So one is a Excel like list ( with a gallery (G2)) and the other one is like a Form (F1). - Now in G2 and F1 there are Controls (like comboboxes, textinput in which I have to set-up all the attributes.
So I have groups in groups in groups in groups. At this place I would surely benefit from a custom component.
See pic below for a schematic
Hope my explanation makes sense and the PowerApps Team understand my approach on using Enhanced Groups as Containers.