What do you thing about display pairing feature?
Maybe client screen can show uniq 6-8 character key and then users can add their displays from CMS by add display button. This key can be generated in first install like uniq hardware identifier key and will be visible on splash screen.
That can be realy fast to get permisions for that display. Also add a column near display infromation which shows the user of that display. It will be very easy to show layouts to specific users, departments etc.
right now it takes time and super admin has to approve all etc. Maybe it can be on CMS V2.
Also we are mapping all displays to departments, has to create records for each display which one is where, who use it then add it to display information where its not sortable …