stage channel - message to presenters only

Just a suggestion or feature request, wish list, 

I want to say I love the stage channels and what you guys are doing. 

The chat channel in the stage channels should have a pull-down with options to send to everyone or just presenters.

There should be two chat channels, one for general chat and one for messages to the “stage.” Messages from the audience should not be visible to other audience members. The presenters should have a reply button so the message is only visible to the message author.  audience should have the option to send Anonymous messages to the stage. 

There should be the option to disable the general chat channel, and Anonymous messages. 

Other features that can be added are polls, Q&A, and a local record button.