Ok this is raising more issues.
We have volunteers, and we have hosts (organisations). We want the hosts to be able to approve attendees at the front end (not the backend of Joomla, we want access tot hat only not other organisations).
Also is there any way to track hours of each user at the event (this is a big thing for client, and its a must). Say for Event X, hours is 5 hours. The host will come and confirm they were there for 5 hours. Or less e.g. 3 hours.
Its a project that has failed after years of no one looking after it and ended up on my plate.