Redmine

hello,
We are using redmine to manage ou change management processus.
The functional user open end close the issue, other status are dealed by IT team. My problem is that i don’t want to give the functional user the ability to view the history or details of the issue ( what IT team are doing).
My questions are ?
- Can i hide issue details based on user role or permission ?
- Can i disable clickable links to on the issues list view based on role ?

If not, what can i do ?

redmine 2.0.0

Thanks