Host->join without changing a level

Hi.
I found some answers but what if its just a pre-match lobby screen? In this case I dont need to open a level after creating a session. I only need to get a list of connected players, their ‘ready’ state and some other info. And only if all of them pressed ready button then I need to travel to some level. So where can I get that info about connected players?

any thoughts?

I would like to know this too.