How do I invite people to my Game Session please?

[Broley]

I've searched the forums and googled, but I just can't seem to find what I need. (for those who will say "just search it" I did!)

I've spent quite some time building my world, lots of fiddly little details which not ONE of my players will remember for more than ten minutes. So I'm thinking of of buying each of them the Players Edition so they can look things up during a game, instead of asking me for the 50th time where the market is.

I know how to start a Game Session. There's a nice big button there, but how do I invite each of my Players to it?

Anyone, please, explain like I'm five years old - and stupid.

Thank you