Oh yeah, you have to create a Building Prop BluePrint for the model to be recognised as a prop.
This should be better by using verse to teleport them instead of prop mover moving them.
But to move the vending machines about just grab a fortnite prop like a wall to use as your mover. Put the vending machine entries in the outliner onto it, say none to socket if asked.
Put a Prop mover on the fortnite prop.
Adjust its properties to suit, the trick is moving your vending cluster out of the way and setting the same distance of tiles in the prop mover at max speed (which is still a bit slow).
Maybe for testing use 2 buttons, in the prop mover use its start function on 1 button interacted and reset function on the other buttons interacted.
In game you should see all the vending machines move to a spot when pressed and their position reset when the reset button is pushed.
When you set up a whole bunch of button, use each buttons on interacted to reset all movers except the one it is starting.