another role

Hi ,
Thank u for awesome plugin ! really very useful plugin.
how about more features like add another role like :
1- admin : manage all website also (awesome-support tickets )
2- sub-admin : just manage assign tickets
3- agent : reply his/her tickets that assign to him/her by sub-admin or admin

can help me to make sub-admin or what ever that help to manage assign tickets ?

I used ( wpfront-user-role-editor-all-roles) to make role but not useful !

just admin can manage assign and when I go to advance setting and I checked (agent see all )not what I need .

I need (role) that to manage assign tickets and (agent) reply his/her tickets just

Thank you again

With best wishes,,