Prefix required it's own two groups and the creation of 5 permissions for each prefix. Look up for authentication was time consuming and taxing on DB. Users also had no idea how to use the system, just what to do to make it work.
Propose to remove groups altogether from the prefix model. if it is empty then anyone can use it. If populated than only with the permission can use it
groups
altogether from the prefix model. if it is empty then anyone can use it. If populated than only with the permission can use it