From My Dashboard, click on "Pick workspace" and select the site where the employee is located.
From the site inbox page click the 'Switch to Manage Mode' buttonĀ
Click 'All Employees' on the manage sidebar:
Find the person you're looking for and click on their name:
Hit the 'Edit' button at the top right of their record
Scroll down to the roles section, and edit the employee's role(s) via the checkboxes.
Need a reminder of the requirements that are applied to the role? Click on the more icon next to the role (highlighted below in green)
Then click 'Save employee' at the bottom of the page.