Grandet rights users vs. Non granted rights users

Hi.

We are using RT with two queues.

Some people are non granted rights users. They see there closed / open tickets
and that’s fine.

Granted rights users don’t see there tickets like this when they are requestor.
Some user from queue 1 can open tickets for queue 2.

How can they easely view their closed / open tickets ?

Someone have an idea ?