It's easy to do on Tyrolia and Look bindings, just lift the tip at the end with a screwdriver and it will slide. Marker has some round shaped part instead and I couldn't figure it out.
It looks like small round plastic pin, flattened on the top side, with a small protrusion at the bottom. It looks like it can only be pushed in, that protrusion would prevent any rotation. I tried to pushed it in, but didn't want to force it too much, as I'm not sure that's the way to do it.
Any help would be greatly appreciated.
Thanks!