Redmine

At the moment I understand we can assign issues to groups.

It would be good if there was a tick box option on the group management screen that would allow issues assigned to groups on a group by group basis.

Scenario:
I have projects on which I use groups to manage the users/roles assigned to the project. Although I would like to assign issues to the users individually, I do not want to be able to assign the issues to the entire group.