I would head over to HCS voice packs site and buy the Astra Voice pack which has every command you will ever need already programmed.
You can also turn off the panels,just click on the dropdown and set it to do nothing.
On your recommendation, I just went and bought the Astra HCS Voice Pack and have to say I'm quite impressed. It's probably overkill for my needs as, while it's cool (in the short term, anyway) to say "Throttle to 75%", I have a button mapped on the throttle for that already and my finger is literally resting on it at all times. It will never be faster to say it. I use it to avoid the loop of shame with the 7-second rule so timing is critical.
Anything that's on the flight stick or throttle, I expect I'll keep doing that way. Anything on the stick base I'll VoiceAttack. There are 12 buttons on my T1600 base, mostly mapped to less time-sensitive things like landing gear, cargo scoop, maps, etc. My VR headset arrives tomorrow and I think any opportunity I have to avoid taking my hand off the stick is worthwhile. Additionally, things that take multiple "clicks", such as requesting docking, I'll use VoiceAttack. Finally, voice commands to your favorite bookmarks and Engineers from the cockpit view is a game-changer. "Plot course home" to return to Jameson or "Plot course to Felicity Farseer" is awesome.
My HOTAS is overflowing with buttons and switches and I'm still finding value in VoiceAttack/Astra. I can only imagine how valuable it would be to someone with a simpler HOTAS (such as my son's Thrustmaster HOTAS X). VA is $8.99US on Steam, and Asta is $14.99. For $24, I think that's an absolute steal.