I really like using shove, but sometimes I don't want to push what I'm fighting out of melee. It would be really nice if there was a way to limit shove to only pushing my target to the ground on a maximum success. Something like shove <target> ground.

Or if adding a modifier to shove won't work then maybe a new move all together. Let it contest skills/stats the exact same way shove does, but don't let it push your target out of melee. Calling the move 'trip' seems like it would be appropriate.