Normally, if you show staff status on name tags, either "Staff" or "Safety Officer" will be printed as appropriate.

You can now customize the title on a per-person basis.  You can also customize the display of the person's home location.

 

Select a shooter or staff member to modify from the wizard screen.

 

 

Then customize the title as you wish.

You can also specify titles for people who are not registered as Staff or S.O.