A selected user can have their details updated in this form, as well as their level for each of the role types defined in https://tyedesk.atlassian.net/wiki/pages/resumedraft.action?draftId=2571010130
Note that, as described in Manage user and roles section, some user roles may be limited to a specific site.
Therefore, when one of these roles is recorded against a user, the operator will also need to select the specific sites to which they have that permission. A user cannot have an “asset” level 1 for one site and a level 2 for a different site however.