How to remove Group in Aurena Page Designer

Hi,

I have prepared a new group via Page Designer within IFS10 upd 9 Aurena.

Then I noticed that I didn’t want it. I want to remove it, but am not allowed to:

The delete icon is missing.

I can’t remember that I attached it to a page. Nor do I know how to check to which page or other element it is connected.

Question for now: how to delete this group?

Thanks in advance,

Steve