TTT groupallow

Alright so, I need help with this. There is a group called “coder” which inherits rights from superadmin. i’m triying to make it so admins can afk coders. the command is called “ulx afk”. So if I go in !menu, under user management then to groupallow it shows 3 text fields.
group: Where I select admin
command which is ulx afk right?
then access tag which is !%coder right?
I really need help with this. Any help would be appreciated! Thanks!