With this upgrade we have introduced the ability for any organisation to have multiple groups within it. So, you may have your overall company "ACME Industries" and then within that company you may have several different subsidiary groups, e.g "Milling", "Turning" "Wiring" etc etc. Those groups will sit under the main umbrella organisation which is "Company BNL".
Your Master Company currently has the name of your previously created group as its default
The organisation then has an administrator who has the rights over each group within that master company.
Figure 1 one shows the construction, and shows that Francois is the "admin" and has access and admin rights for all groups (bold lines). The other users have access to one or more groups, but won't necessarily have admin rights to any of them (dotted lines). All groups sit under the master company.