You need to create a wall, and next to it 2 more, so that there are 3 of them to work with, while I ask you to pay attention to the fact that when they appear next to each other, they make a metallic sound, and this is a good sound. If you do everything right, then the wall will walk. to set up a wall, you need to use it using the C menu.

Customization
1. On/off
2. steps, -1 infinite step, 0 resting stage, 1,2,3,4,5,6,7,8 number of limited steps
3. the opportunity to walk
4. remove the back wall
5. activation (I recommend setting the maximum value)
6. the amount of dust

By the way, I didn't specify anything... when the wall collides with the buildings of the map, it will be able to take a couple of steps and stop, even though the value -1 is there.
And the main drawback... This wall does not climb a mountain... and you won't be able to change the damage range and the damage itself... it's bad.

Excuse me for my English :(