You’d have to re-write half the engine, but it is possible.
Look into the ABZÛ gdc talks.
Otherwise, the max script is really just a material.
You can use a material to displace vertex as a morph target would, but you’d have to code or come up with a way to do it by associating vertex to a specific UV map.
It’s easy to solve for the engine / incredibly complex to set up.
Hardly worth the time involved really.