Try it out, it didn't work for me but you might have some luck with it. Though being outdated theres a low chance it will work 100%.
HOLY CRAP YOU'RE ABSOLUTELY RIGHT I'VE MISSED THAT SHIFT SOUND FOR SO LONG YOU HAVE NO IDEA I THOUGHT IT WAS GONE FOREVER TYSM
Did you read the giant red "OUTDATED" at the top of the thread? The mod is obviously outdated and the author is aware of it.
Ok, calm down Rambo, Easy easy. I posted that when I didn't know the outdated mod could break the mod. You need to calm your stuff dude. --- Post updated --- Break the game*
One of the best mods made for this game. Too bad it no longer works... When you do get the motivation, you could try updating the mod (bump?)