Well when you press shift while climbing something it stops you where you are. So they would have to change how ladders and such work to make this work. But I have always wanted to have some kind of device to climb upwards without it needing to be on a wall.
I am ninja'd far too often.
I would love it if you checked out my "about me" page on my profile and looked at my threads I'm always happy to see new posters.