Effects
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Add a new effect by pressing the plus icon. A menu will appear from which you can select.
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Clicking on the frame numbers display will take you to that frame and right-clicking will provide a menu of frame editing options.
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Icons
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Add an effect.
Lengthen the movie.
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Definition of Terms
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An effect changes the size, position, transparency, and/or rotation of a shape over a series of frames. Generally multiple effects can be applied. For instance the shape fades in while growing from nothing.