How to adjust T50 thinuser permissions?

How to adjust T50 thinuser permissions?

I'm wondering if anybody has info on how to change the default permissions for the T50's thinuser account. I'd like to enable my end-users to change the Display properties and, ideally, the Printer properties too.

I currently am using a .ini file that has the terminal set to auto-login as the thinuser account. I do NOT want them to have full admin privs, but would like to grant at permission to run at least those two settings widgets from the thinuser account.

If that account can't be adjusted, can I create a separate custom account?