If you are having questions with a plugin, then go ask the plugin author and their documentation.
This forum is for PKHeX, which does not have any built in feature for what you're asking about.
make a folder called pk3ds
put the exefs folder & romfs folder into the pk3ds folder
rename exefs folder to exe
rename the code.bin to .code.bin
drag the pk3ds folder into the program and it should load
make sure u use the latest version