Here's save data for the scene replay rooms... recollection rooms? Reminiscence rooms? Whatever you call it.
I set every switch in sync_data.rpgsave to true, since that seems to be where it keeps track of which scenes have been unlocked (across all save files). I saved file1.rpgsave in a place that contains warps to each of the replay rooms. While you're inside these rooms, you should also be able to access a warp-menu by pressing the "Q" key and then selecting the first option.
It seems like replaying scenes causes a lot of bugs, so you shouldn't try to continue through the story afterward. Speaking from experience, you're liable to end up with softlocks, sprites turning invisble during some scenes, characters showing up in wrong places at the wrong times, etcetera. (At least I hope that's why I got those bugs. I didn't actually try playing the game normally, so for all I know that could be how it normally is.)