When people register for a RSVP event, they are asked how to enter the number of guests that will be attending the event. Currently this number is not being imported in the event registration into The Raiser's Edge and we have to look at the LO record to get this information. Importing this information will eliminate the need to look in Luminate Online.
With the August 2015 Luminate Online Plug In release, we shipped the capability to sync Survey questions from Luminate to the Raiser's Edge. So, you can add a survey question prompting people to enter the number of guests, and that question and answer will sync over as an Attribute on the registrant's record.
https://www.blackbaud.com/files/support/helpfiles/relo_nf/relo_newfeatures.html#New%20Features/Calendar_Event_Integration.html%3FTocPath%3DNew%2520Features%2520and%2520Enhancements|August%25202015%2520Release|_____1