So I decided to check the options and turn on cheat mode, but nothing seems to be different in game. Do you need to edit the game files, or is this something that had not yet been added to this version?

Patron only, if you turn it on and play adventure mode, the option comes to replay any scene like pervert mode but iirc with actual scenes/dialogue.

I am busy with my story mode. Haven't checked the game options properly yet.