I'm new to Youtrack, so please excuse me if this is something I've missed.
The permissions system appears to be quite complete, but I was wondering if it's possible to prevent users within a project from viewing tickets submitted by other users? (e.g. assume Project 1 and the users are in different groups to make separation easier - i.e. only allow users from Group A to see/modify tickets created by Group A users).
This would be similar to JIRA's issue security, I believe.
Many thanks in advance,