Slot these into your weapon, armor, or accessory to allow you to cast MP-cost magic abilities. Are you talking individual saves or the 10 save slots? I think you can delete the slots under My Documents\Square Enix\FINAL FANTASY VII STEAM\. Cloud's. . Any% PSX No Slots Notes/Guide (with Final Fantasy VII Slots Analysis for any% (More Accurate Timing Tutorial) Final Fantasy 7 Question has. Green "magic" materia = elemental spells. Are you talking individual saves or the 10 save slots? I think you can delete the slots under My Documents\Square Enix\FINAL FANTASY VII STEAM\User_######\save. 4 years ago.