Step 2: Bring it to life
Ready to animate her sketches, Plant opened the Timeline (Window > Timeline), selected Create Frame Animation from the dropdown menu, and chose Make Frames From Layers from the flyout menu. If you have used the Timeline before, it may populate with empty frames by default. If this happens, click on the first frame and hold the shift key while clicking on the last one. Choose Delete Frames from the flyout menu. Then you can choose Make Frames From Layers.