Permission to create ticket but deny setting owner

Hello,

I’m creating a customer access to your RT system. Special customers will receive RT access and should be able to create tickets. I created a group for this customers and set the following permissions on my Queue:
User: create ticket, comment ticket, show queue
Creator: change values for custom field

But on the create-mask this user still sees the “Basics” and is able to set the owner of the new ticket.
How can I avoid this?

I think there are 2 possible solutions:

  1.   Hide the "basics"
    
  2.   Hide only the user
    

Best regards
Bernhard

But on the create-mask this user still sees the “Basics” and is able to set the
owner of the new ticket.

How can I avoid this?

I think there are 2 possible solutions:

  1.   Hide the “basics”
    
  2.   Hide only the user
    

Trivial? CSS injection for users in the group to hide Basics.
Otherwise try using a callback or some other mechanism to hide the
Basics box. There is no config or right you can change for this
though.

-kevin