It might be nice if there was a more readily apparent way to do this! Perhaps a pop-up, a guide or just a note somewhere in the game. I am several hours into the game before I remembered that this was even a thing, and now I feel like I have to restart. z: /
Addendum: I copied the datacrystal.js file over, restarted my playthrough, and the scene did not play! (By which I mean, the alley behind the hotel was empty.) I have no idea what to do from here!