Admins, Location Leads and Location Schedulers can make any changes necessary on the profile of a worker.
To get to any workers profile you can use the Schedule page or the Staffing page.
Search or scroll to find the worker ,click the 3 dots next to their name and click View Profile.
OR
There are a few different things you can update in a workers profile, but most importantly, make sure you click the arrow to the right of the screen to unravel the section you would like to update.