I've figured out the recording room scene. The method of getting it is to open up memories and clicking on the scene, next you tab out and do as the shower scene and delete a letter, last you overwrite AfterCompleteGameData with my save which includes the shower scene already as I tricked the game into assuming I already have it. This method is possible for all scenes but they don't load and send you back to main menu
Edit: You can actually just use my save file and to overwrite the save after open the scene and reopening the recording room scene
My file download here along with a video guide if needed
Pixeldrain