There is a way already. Look under live chess settings.
Misclicking
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Sorry, are you referring to the enable pre-moves option? I can't find anything else in the live settings other than that option you may mean.
I don't know if this is the correct forum to post this on, but can chess .com please make live chess a bit more like turn based chess where you make your move then click on the tick to be positive that this is the move you want to make. I know misclicking doesn't happen too often but when it does it can ruin your game. So for us getting on a bit and need our glasses and slippers players please implement a way of confirming moves in live play. Ty