If you are on the Team plan, you can decide to add a set of Report Viewers to your licence and Omniscope installation.
A Report Viewer is a user who can explore, interact and reshare reports built by others, i.e. an editor / analyst.
To enable Report Viewers you would have to configure group permissions and users by following these steps:
1) Disable anonymous user, by selecting "None", to prevent anonymous users obtaining the Editors or Viewers seats.
Then add the Viewers to the group same way you do in 2b)
Report Sharing settings
As an admin you can always see how many concurrent editors an viewers are connected to Omniscope by navigating to Admin -> Health -> Concurrent User (Details) ( /_admin_/health/concurrent_users ) page