How I can get that

I bought Ancient scroll But I don't know how to enter commands

Help

Game stuck at 99.6% map completion. I unlocked entire map with guide.

I need help on this. Is there a walkthrough anywhere that covers this specific part of the game and where to go to raise and lower and in what order? I got to the part where you can destroy the pile of books, but I'm stuck right now and I've been wandering back and forth in this level hitting switches for what feels like thirty minutes. It's really killed my enjoyment of the game, and had I known they had this kinda thing in here as a mandatory part of story progression (so not like, just a bonus side p...