How do I change a field to required or optional?

How do I change a field to required or optional?

Changing a Field to Required or Optional

This is useful if your time bank has specific requirements.  For example, some countries do not have states or provinces.  Its setting is in /admin/user/settings at the bottom of the page below the save button in Collection settings.  Change the Collect drop down box for State/Province to either Do Not Collect or Allow.