We as a MTC use MRA for our agenda and routes. We created a Group wich we use for sending the invitation for eventes. Both the group and events are "closed"
When people like to join our group and events they have to become member of our MTC. This is done via our website.
When a non-member requests to join the group or events I can't communicatie directly with them. Now I just decline the request but in my opinion that's not very friendly.
This could be solved when I can put a kind of a remark.