I'll check on the collaboration piece and get back to folks about that once I look into it... that is essential for you to be able to edit. In the meantime, I'm happy to do so for you. It is a work in progress, still at this stage.
To be clear, the spreadsheet is a dual purpose one... the column with the rsvps for the meet & greet is there. Those individuals with a "yup" there said they would be interested in that. If folks have numbers indicated in the adult and or child columns, that is for FE participation. There are people just participating in FE and there are people just going to the meet & greet... and there are people doing both. The column count tells you what's what.
I will go in this weekend and make edits, additions and add ages of children if known to me by then (many put them in their earlier info, so that's easy for me to pull). I'll throw word up here when it is updated.
Be well, Maggie