Yes, like Raven mentions, I use VoiceAttack, which is pretty cheap and well worth it. There's a free plugin for DCS called VAICOM which makes you talk to ATC/tankers/JTAC etc. without using the radio menu at all. It will even distinguish between modules, so I can have one command ie. "close cockpit", that will press different keystrokes depending of the module like planes vs. helicopters.
Cheers!