Patron clarification

[mototom]

I apologize but I'm still a little confused about Patron accounts. What exactly can a free account do in a Patron campaign? Nothing? Just make a level one character?

I love the progress made for patron accounts, but I have a number of players who will only play PF2 and only use Hero Lab for my game. If free/demo accounts are still very limited I'd love if there was a higher tier that allowed me to let those people participate in my game.

If I owned the characters but gave them control, could they manage their own leveling up, or does that still run into the account limitation?