Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding Troubleshooting A new Living Wall type skill

My understanding is this:

The 3 GUIDs used by wall spells are variants of the wall sections. They are randomly(?) spawned along the chosen line. You can remove the blocking element of the wall by replacing the spawned GUIDs with GUIDs that do not block pathing/projectiles/sight.