how to delete Ftp username tag?

[TGates]

This is hardcoded into Sentora. The reason being so admin knows what accounts belong to what user and also so that users can use same DB name without worrying about it already being used. They want to use 'admin' as a user, only one person can use it. Having the username as a prefix, then all users can use 'admin' as a user. (zadmin_admin, user1_admin, user2_admin, etc.)