You can optionally bulk import user records using a CSV file.
Full Name,Policy Name,Email,User Principal Name
Low Security User,Low,lowsecurityuser@kaseya.com,kaseya\lowsecurityuser
Medium Security User,Medium,mediumsecurityuser@kaseya.com,mediumsecurityuser@kaseya.com
High Security User,High,highsecurityuser@kaseya.com,highsecurityuser@gmail.com
Note: You can create a starter CSV file by adding a single user record manually on the Users page, then exporting it.