hi play room team i hope to allow us to open a new winndow from play room but window for join or create free table and main window to play game, thanks

I'm assuming that you mean being able to create two separate tables one for the game itself and one for free tables.
I don't see the point of that however, since you are already able to chat in any game table, and invite people to it. In fact I do that quite often. Unless you mean to incorporate teh dicerolling feature in every game but again, I don't really see the point to add quite possiblly hundreds of lines of code to have multiple window instances for such a trivial thing. Just me though.
Hth
merry christmas

Hi,
what he means I believe is for example chatting with a few people on one free table, and in another window playing a different game without leaving this other free table.

This isn't a bad suggestion, another platform does this quite well, but it will require more than just allowing to open a new PR window.
What should happen when someone presses ctrl j on your name and which one should they join? Ideally I believe a list should open displaying all tables you are currently at.
What should be displayed in the online users list? Are you busy playing a game or available on a free table?
That will probably require a bit of redesign, but I would make the state busy always a priority if you are playing something.
For example, imagining you are in a game and playing as well as chatting on a free table, it would say something like, Nikola, busy, Uno, free table:
It could get a little confusing sometimes though.

Hello,

The playroom hasn't been designed with the ability to be at several tables at once in mind. Doing this would require a major redesign of the structure. Except maybe for tournaments, I don't think it's so useful and hance worth it.