Infinite tiled sprite

Given a platformer game, which is never-ended until you’re entering in collision with an enemy ;
Given a never-ended straight and flat ground ;

How do you actually create a never-ended ground based on tiled sprite ?

I finally found it.

Given “ground” and “player” objects. Player is supposed to be at fixed position.

Then you’ll have to associate this event :

The X position of ground is <player.X() - 800

with this action :

Do =player.X() - 300 to the X position of ground

You can also change ground position relatively to camera instead of player.