We have number of admins that we've added directly from AD and assigned one of 3 roles. Could we create AD groups and add those groups to make it easier to manage? I noticed it requires a email address on the form.
"You can add Admin Accounts from the Administrators List View page, providing access to advanced features of the Workspace ONE UEM console and Workspace ONE Express. Each admin that maintains and supervises the console must have an individual account."
Under Accounts - Administrators - Admin Groups you can add an "Admin Group" directly from AD and assign a Role (second tab at the top) to this group. Don't forget to check "Add Group Members Automatically" to enabled, in case you want new users being added automatically.