# Understanding Time segments

The visiblity of a layer or an effect is controlled via Time segments. A Time segment consists of a number of keyframes, and segments between them. Every pair of two keyframes forms a segment. When the time cursor is inside a segment, the layer or effect is visible. Visible segments are drawn in the time graph.

A Time segment also has an origo. It is an time origo for the effects inside a layer or the data inside an effect. All the imported animations in an effect start at the point in time the origo represents. An origo is displayed as a grey triangle in the Time graph.

To change the origo of a Time segment:

- Move the Time segment by dragging a visible segment.

To move the keyframes of a Time segment:

1. Select the keyframes you want to move.
2. Drag selected keyframe(s) to a desired point in time. All the other selected keyframes maintain their relative distance to the keyframe you drag.

or

- Click on the Value column of a layer or an effect.
- Modify the values you need and press Enter or close the window.

See also

- Using the Time segment type-in
- Selecting keyframes
- Moving keyframes

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