Without this tool, you would never be able to make the same shape twice in a row. Also, if you were wondering, you can not import or paste in pictures made in other programs to get around the shoddy drawing tools of MorphInk. What MorphInk does with two pictures is absolutely amazing. While you are drawing the scenes, you must redraw each line. You can make multiple scenes and create more complex movements.
Animation has a lot of options.
The Playtime changes how quickly the generated increments between each frame last on the screen. This Animation Speed can be changed in real-time using the window wiper icons on the right side of the animation window. The Background Color is the color which is in the background of the draw window, and also show up in animation. Play Direction discerns which way the animation proceeds. If set to forward, the animation will play through frame one, two and so on, and when it hits the last frame, it will loop back to the first frame.