Refreshing the multiplayer session info

On my multiplayer game, I’m getting the list of game sessions currently hosted on the LAN thanks to the FindSessions method of the Online sub-system, like what is done in the Shooter example game.
But before joining a server, I’m performing some setups for the player, and in the meantime, some other players could have joined the game, which has an influence on the options offered to the player.
So, once I’ve selected a server in the results returned by the FindSessions query, is it possible to refresh the info from that server? I could launch a FindSessions again, but with extra search parameters in order to get only the updated info of a selected server, how can I do that? What are these parameters, what can I use in the FOnlineSessionSearchResult to restrict that research?