Quote Originally Posted by Kumosan View Post
What other use? It is an additional abstraction of the designer created interface. There would be thousand uses. It would be an enhancement of the layout editor. You would not only layout the geometrical arrangements of the single widgets, but give them a logical structure.
Name one.

Yes, and this is what I call a workaround.
No, this is not a workaround - this is a general way of doing things based on object names. Using it to put buttons into a button group is just one of the use cases. You might use the same approach to... I don't know... for example apply event filters, modify properties on multiple objects or do anything else you like if you don't have pointers to objects but know their name pattern. Remember that a button group doesn't have anything to do with the layout of objects, so you can't put a QButtonGroup object on a form and assign buttons as children to it.

You know how to put layouts inside layouts? This is a layout tree. You position object geometrically in it. The same way you could group
meta information of the objects in your designer generated code.
But what is the point of "grouping meta information of objects"? Would you like to use them in Designer or in the hand coded class making use of an ui file? I can imagine having a separate mode for Designer for such things but I don't see any benefit for a larger group of people (which is the only thing capable of making Trolls implement this).