Hi Stephane.
thank you for your help.
At your first scenario, yes when end user makes use of "add cc user" a new window will show
A listing with the users that need to be added to this ticket, but this listing is showing all the domain users (end users, admins, built in, etc.) those are more than 300 for example and this is a security issue.
When at the end we are hoping to see just 100 users at that listing, those same users added to
Configuration --------->User Access & Roles ---------------> users