Just want to say that this is AMAZING! I'm still on haxchii cbch, tiramasu looks interesting and with the modularity of Aroma, I'm feeling the pressure to switch! The idea of ftp server running in the background is enticing (could I sync game saves to my a Dropbox folder on my PC for example...
I found a reddit post that talks about what exactly the codes do (at least in Donkey Kong Country Returns[DKCR]): I pasted it below.
You're looking for something called button activators. Basically, a button activator is 4 digits within a code sequence, that does exactly what it says, it...
Basically, use the title key as a "map" to navigate the file system. You can find this number by looking at the folder name of the WUP format game you downloaded from Wii U Helper.
For example, this [00050000101C3700] is the title key for Phantom Hourglass.
So starting on the top level folder...
If you decide to take the easy way out, at least do it some interesting way, like 5 fishing magnets and ropes... Run out to the space x rocket as it's about to take off.... Ohhhh add some snow skiis and skii into to space!!!