(BTW, this is very much the same as Frank M's suggestion.)
As the Organiser, I can't see the full list of invitees - only those who have responded to the invitation.
This makes it difficult to track whether I've invited people or not.
I'm trying to set up a 40-50 person meeting for a weekend day in September or October (= many time slots to choose from)
A problem is that I will obtain their email addresses piecemeal.
As they arrive, I will THEN send out invitations.
That's difficult to track with your present system.
So, is there a way of viewing all the people invited so far?
Maybe the feature could be toggled on & off.
It's not something that the organiser needs to see all the time.
This would help keep screens clutter free.
BTW, any "intellectual property" that I might have in this suggestion I assign to you.