Hands-free mic talking

Hi,

It would be greatly appreciated if we could have a setting in the "Sound" menu that enables you to talk on the mic "hands-free". This is an available option in Dota 2 and what it does is rather than pressing a key when you want to talk it simply activates your mic when you speak. This would be really handy, especially when commanding. I must stress that by default this should be switched off since you can wind up with overuse of the mic.

Thanks.