I don't know yet, since i'm more than a speeder modder than an unlocker modder.
First version of my mod allow player to unlock all branches with only one save. It's still doable, but i don't want to allow that anymore as it will be a savegame breaker, as Dev start to implement branch mode in save migration.
@Galin makes a great job to do that. He unlock events and allow redoability.
As i think that release the uncrypted images at same time as game is enought to "see", but you'll need a little effort to find your way to get theses events, as if i remove them, they're is no gameplay anymore !