Hi Marek,

re:
> And why groups should follow 2D programs in 3D program?

Because those 2D programs have had a feature called "Groups" for probably the longest time of any software and as a class of software they have the greatest consistency between them for how groups function.


> Problems with understanding this concept seen here don't confirm that's the best way.

It's incorrect to jump to that conclusion. The main response from people who understand it fine is just silence.


> But, I assume that's for sake the majority of users used to groups in those 2D applications.

Yes that's correct.

- Michael