This will allow you to view any scene, but may not work with events that require an item that triggers the scene, you'll need to use a save file editor to add the required items yourself if that's the case. You don't need to be requesting save files if you understand on how to use the cheat, you'll just continue to be ignored by most or referred back to this if you ask for a save.
How about no? no idea who put it there, so I'm gonna edit that. Not all savvy enough to know how to operate this. I'm sensing this is going to be another mess like ToN thread.