thanks for your feedback.
We are running vmWare 6.2 and Veeam One 188.8.131.5201.
Having a category er division and a group per team is fine for us...unfortunately we didn't get it working even with method 4
In Test 4 case, we see only the top folders which do not contain any VM in it. Indeed we even tried moving some VM in it but couldn't see it either.