Ok, I've tried searching for something but I can't find anything. I'm at the part early on on Bylro or something where I've just passed that big robot thing on the floor and I've carried on and there is a ledge where I can't cross to get to the other side. How do I cross? I get the feeling I need to scan something. Am I right? If so which scan and how do I do it. Basic scan I hold Z but the other how?