Head to 'Manage categories' to assign responsibility to a group of your users to your Help Desk categories.
If you assign a responsibility for a Help Desk category to a group, then members of that group will have the option to only be notified of tickets raised in the category they share responsibility for. As a bonus, if there is only one person in the group with responsibility who can access the location where a ticket was raised then they will automatically be assigned as the owner of the ticket too.
From your Help Desk, click on 'Manage categories' from the side bar menu.
Now, choose a category you'd like to assign a group to. Under 'Group with responsibility', you will be able to select one of your groups to assign responsibility to. Don't forget that you can allocate multiple groups to your users, so feel free to create a new group for this assignment.
Review the other options for your category and then click 'Update Category' to save your changes.
Your list of categories will now show the group with responsibility.
Check your notification preferences to make sure that you can be notified of new help desk issues in your assigned categories.