(idk about other pcs im using windows) on the search bar search run also keep in mind that going to the files from steam is not the way search %appdata% and go in roaming

after your in roaming search for a file called MMFApplications (or just search MMF) theres gonna be these things (idk what theyre called but they look like blank pages) find one called sl (i heard there is other games that have sl as the name too) its gonna have these intro=1 current= whatever night your on change the current to which night you want there might be ones that say beat1=1
keycard=1
beat3=1
those are just the stars so change the current to which night you want and to get 3 stars copy those above