Ok, understood, but this is what i wanted: If the users home dir is already shared, this is fine. I feard a vice versa approach - which would be really stupid:
The user’s home dir is not shared and an alternative share had to be created for each user.
But derived from that my initial (wrong) conclusion was: a group will have an own share as well - a cool Feature treating Groups and users in the same way: create a group and a Groups share is created in parallel…
Best regards
Thorsten