D7_moltine

Hi everyone! I'm new here, and I've been using PKHex for the longest time on gen 6 games and I love it! But I have a question, since now this program supports Gen 3-5 now, how can I edit savefiles of my Platinum/HG/BW 1 and 2? Do I use the homebrew save manager to export it like X/Y/ORAS or it works differently? Or it can't be done on cartridges? Kinda nervous of trying to use it and bug my saves... Thanks in advance!