To edit a user's role, you will need to click on:
All Users
Search the user's name
Click on the user's name:
Scroll down to the Location Access section
Locate the correct building
Click Actions
Click Edit
Click the drop down box under "Role"
Select the appropriate role to assign
Click Save
If you need more information on tiered admin roles and their abilities, please refer to this article here.
Note: All changes made to user roles will reflect under the user's Audit Log as "Updated User (Name)".
You can find the user profile Audit Log at the bottom of the page.
Another area to locate the user role change that was made is via the building Audit Logs by accessing Activity > Audit Logs