SSHOW is an editor for making screens that move.

A scene is like a single slide. A project is a series of scenes, and when you play it, they advance in that order. Add, duplicate, and drag to reorder scenes in the Scenes list at the top left. A project has one scene size, so changing it in one scene changes every scene.

Shapes, text, images, video, audio, and tables that you place on a scene are all objects. Choose a tool, such as Rectangle, from the toolbar at the top center and draw on the scene. For images, video, and audio, choose the tool and then pick a file. Change the selected object’s color and size in the right panel. A scene’s objects stack up as layers in the Objects list at the bottom left.

A transition is the motion from one scene to the next. When the scene you’re leaving has its transition on, objects that have the same name in both scenes move smoothly from one to the other. You don’t need keyframes, which record values at points in time. Turn on transitions in the Motion panel, which opens from the curve-shaped button at the top right: choose Easing or Spring, then click Apply.

Use the timeline to make things move over time within one scene. Switch to Animation mode with the mode button at the top left or Tab. The Objects list spreads out along the bottom of the screen and becomes the Timeline. When you change an object in this mode, the value is recorded at that point on the timeline. Each value recorded this way is a keyframe. The three edit modes explains the modes, and Two ways to make things move explains how this differs from transitions.

Interactions make things respond when someone clicks, hovers, or presses a key. Switch to Interaction mode with the same mode button or ⇧I. Connect a cue such as a click (a trigger) to something to do (an action), or choose a ready-made recipe. Your interactions work the same way on the presentation screen and through shared links.