Hi Frank,
Thanks so much for reaching out and for your interest in our products!
1. Modify the RSVP process?
The RSVP process is generally the same as the process with Event Tickets. If you could be more specific about the way you’d like the process to be different, I may be able to provide some more specific information.
2. Modify the RSVP Form?
Yes, you can modify the RSVP form, add attendee information, and add other custom fields.
3. Can they register with their facebook account?
Unfortunately, we don’t have this feature available.
You can also add this idea to our Feature Requests, as we tend to implement ideas based on customer feedback, so your input is greatly appreciated:
https://tribe.uservoice.com/forums/195723-feature-ideas
4. display registered users names on the front end of Event?
Yes, you can display Attendees on the front end of your site.
Let me know if you have any other questions on this topic!
Thanks,
Jaime