two. for the second step, you'll choose the gifs that you will use and always make sure that the gifs works together.
three. the fill bottom is to make the gifs in one shape, so not using them is a really bad decision.
four. then go to the crop bottom so you can decide which shape you prefer.
five. after you end with everything and save the gif, this whiteboard will show up to you, so you can choose which size you want. and for this gifs I choose the 1/2
If you ever made one, mention me so i can see what you've beautifully made.