Drag a view onto another one ?

Just curious. I was rearranging views when I noticed a view could be dragged into another one. When done, it creates an instance of the dragged view as a control, but this shows nothing neither in the IDE nor at runtime.

What is it for ?

shouldn’t allow that

[quote=152725:@Norman Palardy]bug
shouldn’t allow that[/quote]

I suspected so. Thanks. Do you want me to file a bug report ?