@Dingolo(View Post) Find a GIF maker website, upload the images you want in the order you want, and it will convert them into a GIF file. Here's a poor one I did:
Suggestion: Don't rename O2 and H2. Breaking half of my saves was far enough. Renaming elements with perfectly good names already is too far. >:I O2 and H2 and LO2 should stay as their current names. It just makes sense and always has.