“Infinite Items” only works for item quantity greater than 1. Note some side quest requires you to collect the exact amount of items, you’ll need to disable this option otherwise you may not be able to complete the side quests.
“Infinite Flash Move Duration” and “Infinite Flash Guard Duration”: flash move and flash guard may end when opening menu or entering a different location.
After downloading .zipp file rename the file to .zip and open it with any compression program