So I also tested out V10Lift which was like a real lift but has a but too much setting up but I really loved the way the floor moved and I could call the lift when it was in another floor.

So maybe you can that the floor moves under the players feet?

And can you add the option to use another type of glass as a floor besides glass. Maybe make a command /lift floor select
and then right click the blocks you want for the lift.

Thanks

Not possible.