Saw a post on Discord of what looked like the aftermath of a world eater with a slipway hanging out in midair. It would probably be helpful to have some way to destroy slipways that you don't need anymore.

(hextweaks has a method but a official method in hexal would be nice)

Apparently they don't like fluids, so they break when fluid flows through them or fluid is replacing them.
So create water will do.