User management in Mopinion is managed with a combination of the users' and access groups' functionality. With access groups, you can create groups with specific rights (edit, view, no access) to sections (reporting, actions, data collection, etc) and reports. With users, you create user accounts that can be assigned to access groups.
Where to find the users menu?
Go to Settings → User management → Users
Where to find the access groups menu?
Go to Settings → User management → Access groups