Need help with a relatively simple issue.

I have a tile platform ______ this platform moves left and right. When the character lands on it. It will just move out from underneath him if he doesnt run in the direction its going. This isnt the physics I want. I want it to be kind of like an escalator. If you stand on it, you will move with it. However, I still want the possibility to move left and right while the tile is moving. How can I do this? everything I’ve tried either you are stuck in the middle of the tile(Dumb attempt I know). Any ideas?

Generally this is done by checking whether the surface on which an actor isGrounded is in motion, then adding identical motion to the actor. In 2D with lateral motion, this is easy. In 3D when rotation is considered, it gets a bit tricky, but the principle is the same.