A Gorey Demise (for pad) + question regarding charts

Just a stepfile that I created.

https://www.youtube.com/watch?v=8u2iJIk4aqc

Download: http://www.mediafire.com/file/t6q29323kq9p4r1/A_Gorey_Demise.zip

Also, since the other boards are full of spam, I'll ask my question here:
How do you get attacks, timing changes, etc. to only show up on a certain difficulty for a song?

I've had a pack that had a song in which one of the several difficulties had attacks and such, but I don't have it anymore. However in the Mungyodance packs, they have songs that have normal difficulties, but also a different file (the only difference was a possible minor audio change and EX at the end of the title) containing the same song but with one difficulty with attacks.

Maybe having attacks in a difficulty is a lua scripting thing that I don't understand as I've seen with several Undertale songs that I don't currently have installed have a normal chart and another modded chart in the same file.