The way I would usually do it is by setting
rigid.velocity = new vector3
and then zeroing out one of the directions I don't want the object to be able to continue in, but since the direction can be variable, I'm having trouble figuring out a way of doing this.
I started down this path after I had rigidbodies interacting in ways I didn't want, so I'm essentially forcing hovering to make sure they don't touch and so, don't interact. So I'm pursuing this for now.
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