The Managing Roles option can be accessed using the dropdown arrow in the Org section (top status bar)
Selecting this option will bring up a screen containing a list of roles. You may edit, remove and assign role to users using controls on this screen.
To Add a Role, press the Add Role button. This will bring up the Manage Role dialogue window.
From here you can specify role name and select permissions to access DataGroomr modules. Press Save to continue.