rules on Safeguard Remote Access

Just a simple and quick question 

in remote access I need to load all the servers of a customer and I see that I can also put the subnet but if I create a rule e.g. to load all the servers on this subnet I see nothing on remote access. Am I getting the syntax wrong or is there an error and I have to open a ticket?

Also, if i want each user to see only his own servers which will start the session with his admin account, how can i do this? it is impossible to do this only with AD groups because it means creating an AD group for each individual user. Is there any way to do this filtering?

Please help me

thank you very much as always