I am new here so please forgive me if this has been covered or requested already (I did search and found no references).  One of the things our GM does in Google Hangouts is avoid the hangout chat window while we are gaming--which gives the players a place to speak together without interfering with the GM (and do a small amount of metagaming at times).  We are likely switching to using  Roll20 (the GM is currently using PowerPoint and two connections to show maps)--and it would be nice to use the Roll20 chat box without having to resort to keeping that second chat box open.  Granted we could keep the second one open and/or use a different chat mechanism--but I was thinking it wouldn't be that hard of a thing to add in a chat / command that would include everyone but the GM.  It may be a good thing to set it up as an option that the GM can turn on/off if that is possible...   Thanks for your efforts--really nice work!    Gordon