The most common kind of timeline animation involves moving a layer along a path. Timelines can move only layers. To make images or text move, create a layer using the Draw Layer button on the Insert bar and then insert images, text, or any other type of content in the layer (see Inserting a layer).
Timelines can also change other attributes of layers and images; for more information, see Changing image and layer properties with timelines.
Make sure you have selected the desired element. Click the layer marker or the layer selection handle, or use the Layers panel to select a layer. For more information, see Manipulating layers. When a layer is selected, handles appear around it as shown in the following illustration.
Clicking inside the layer places a blinking insertion point inside the layer, but it does not select the layer.
A bar appears in the first channel of the timeline. The name of the layer appears in the bar.
A line appears showing the path of the animation in the Document window.
Repeat this step to define additional keyframes.
Repeat the procedure to add additional layers and images to the timeline and to create a more complex animation.