need a hex code expert and know ps 4 save editing

need help editing save file for final fantasy XV comrades expansion web hex is in JSX and quickly add buttons the button that i want to be added is max stats means it add 4k stats press it and it give the save file exported from save wizard you upload the save file press a button and it add the hex code inside the web site is made so it open source. what you bid is what you expect to get for the project i only make milestones no other payments.