The help describes how to activate Traditional group heading and Group column. How do I activate them both at the same time?
You can't have both at once; one cancels the other.
Is this a bug/side-effect then?
It might be (unless I've forgotten how something works).
How do you make that happen?
That was my original question I don't know. My default lister is dual panel with multiple tabs on both sides. On some of the tabs grouping is missing, on others Group column and now I discovered this hybrid on one of the tabs. At least it's so when I open the lister. Moving up/down in the folder tree will revert to Group column and going back won't restore the hybrid anymore. I suspected this was a bug but I hoped it wasn't.