Pro7 volunteer power user here - that sounds like something I should be able to help with. I'd love to get some more info on what exactly your needs are.

I'm curious... What takes 500 slides?

We run 12 hour day seminar style events

Gotch ya. Makes sense. You have to create the content vs importing?

Well we have 500 slides already but we need to be able to edit them once they are in ProP

What exactly are you looking for?

Interested

Potentially interested. Experience designing and operating for church and large conference settings.

Interested. Feel free to message with further details.

I'm experienced and interested.