On enterprise server I tried to change any settings of a server and I am asked for password. For my account password. I am let go and I can see settings of server. Problem is the server settings are running on different credentials (setup ones) and if I try to change something (like group name) it doesn't take any effect (I guess because it's different setup account).

The server settings are global and do not depend on any username. Please send us more details on how to reproduce this by email (maybe attach some screenshots too). Thanks.