Here you get an overview of all users which have a role and see which one they have. You can also assign a role to users or whole groups here:

1. Select for which group or user you want to add or remove roles. You can either select a single user or select a group. When selecting a group, your change will affect all users within that group and all users of sub groups withing the selected group.
2. Select which role you want to add or remove. You can select one or multiple roles.
3. . Select what operation you want to perform. Clicking the “+” adds the selected roles if the user(s) did not have them already. Clicking the “-” removes the selected roles from the user(s). If you add roles to a user which did not yet have any role, it will automatically enable “Can Login” for the user.
4. Save to finish the process. Users which previously had no role and “Can Login” disabled will automatically receive a mail with a link to set a password.

Below the Mass role assignment you can find the overview over the assigned roles. You can also manually change roles there for specific users.