Multi-key in Modding Plus?

Back when I was first making what is now Disappointing Plus, I wanted to try to add multi-key from the Shaggy mod. Back then, I didn't know much about coding FNF and gave up pretty quickly. I never really tried to do it again as I thought someone had already made multi-key in Modding Plus. I saw in the Modding Plus forks that there was a fork called "ModdingPlus12Keys" and assumed it did what the title said. After examining the code, I don't think it ever worked. So, I tried on my own to recreate multi-key. So far, it's working pretty well. I got the basic notes working, but there is still a LOT to do if I want this to work correctly. I will probably post any updates on this on my second channel. I posted this video on this channel just to let my general viewer base know.
I'm also not looking at the Shaggy code for this. I know enough about coding to do this on my own.
Here's an updated version on my second channel: • Monster's Absolutely N...
Second Channel: / @fridaynightdisappointin
Disappointing Plus (My Modding Plus): github.com/AFunkinDisappointm...
Friday Night Funkin':
Newgrounds - www.newgrounds.com/portal/vie...
Itch.io - ninja-muffin24.itch.io/funkin
Support them, they make some great tunes.

[@thepuppetmarionette6713]

I never thought this would actually be possible to make in modding plus

[@TotesAnon]

When I saw Daddy Dearest singing kaio Ken I was like WHAT IN DA HELLLLLL

[@Tomciok]

no way!!1!1!1!1!