Permissions - Show EPOS to other users

I'm trying to show EPOS info to other users - when I installed the agents on the machines I used the Admin account when pointing it at vROPS, now in vROPS, only the Admin account can see OS's.

I log into vROPS as Admin and click on Access control, when I click on any of the accounts that I want to give permission to, the Edit button is grayed out.... It is the same for groups.

Any thoughts? Thanks!