Thanks Marc! I didn't know that was already a thing! Great minds! Looks like it would do all the things we need. How do we implement it?
On a related note, did you see my post about membership management? At Geek.Zone, we need to charge people to join, but have not found a robust way to do this yet. We are currently using membermojo to manage the process, but would prefer to do it within tiki. Is this something that could be done with trackers too?