If you work here you are member of the group
If you are several teachers on the same course and want to all have
permissions for some files the general recommdation is to use the
staff even though other people are also in the
group. But if you actually need a new
group ask Per to creat it.
Don’t forget to mention what name you want the group to have!
Are groups needed for subgroups of the students? Maybe because they are working together in a few projects? Maybe not. If these are done with version control all access control can be made on that level instead.