The ability to create cinematic sequences or even dynamic elements within the engine is covered by the Matinee animation tool. This system allows you to manipulate the properties of an object over time and its framework is based on keyframes (like any animation or video editing software such as Flash, Maya, and so on) where each key positioned within its timeline represent a value of an Actor in the level:

Let's take a look at the interface:
Menu bar: At the very top, we find the menu bar. From here, you can import/export the Matinee or part of it, manipulate keys and sections, toggle and customize the viewport.
Toolbar: From this toolbar, you can find buttons to preview the Matinee (such as play, loop, reverse, or playback speed) and buttons to navigate through the sequence.
Curve Editor: This editor allows you to graphically visualize and edit the animations curves used by the tracks in the sequencer. Tracks that have animation curves that can be edited in the Curve Editor in Matinee...