Redirecting files from %LOCALAPPDATA% to port

So I have an app I've been trying to portablize (is that even a word?) for my own private use and it has a bunch of data it writes to the %LOCALAPPDATA% folder. I know I'm supposed to edit things in the launcher ini but can't figure out how to actually get it to work. I at least got the directory structure of the main folder copied over but none of the actual files. I've created portable versions of other apps before but only ones that already have a native portable version. How do I get everything to copy over to the portable app folder?