I am experimenting with placing layers on the timeline of photoshop. I would like to change the duration of the layers as they appear on the timeline. The tutorials indicate that that right clicking on the clip will bring up a context menu that allows you to change various aspects of the clip and associated audio (if any). Right clicking of the layer in the timeline does not invoke the context menu indicated in the tutorials, rather a motion context menu. Is there a way to change the duration of layers in the timeline other than adjusting the length by hand for each clip?