# Using Timeline window

The Timeline window represents a demo's layers and effects so you can add and animate them. Most of the animation work is done in the Timeline window.

A. Play Console lets you to control the playback. The buttons from left to right are: go to the beginning, previous frame, play/pause, next frame, go to the end.
B. Current time shows the current time in the demo. You can use the edit box to change the current time. Current time uses SMPTE timecode (hours, minutes, seconds, frames).
C. Time graph displays the layer's and effects' duration, the positions of keyframes and timeline for each effect and layer.
D. Time ruler indicates the part of the demo duration displayed currently in the Time graph. You can drag the Time ruler to scroll the Time graph or you can change the duration shown by pressing the right mouse button and selecting the desired zoom factor from the popup menu.
E. Time cursor indicates the point in time represented by the display in the Layout view. Drag the Time cursor to view specific fram or to set or change keyframes. Dragging the cursor outside the time graph scrolls the Timeline window.
F. Visiblity switch lets you hide and show specific layers and effects while editing. This visibility does not affect the final rendering.
G. Lock switch lets you lock a layer or effect to prevent any editing in the layout view.
H. Layer list displays a label for each layer, effect, gizmo and parameter. Click the triangle to expand an item.
I. Layer list separator separates the layer list from the list values. You can drag the separator to change the space occupied by the values.
J. List values displays values for each item in the layer list. Click the value and a popup window appears, where you can edit the value.
K. List values separator separates the values from the time graph. You can drag the separator to change the space occupied by the values and the layer list.
L. Expanded value graph lets you edit the keyframe values graphically. It also displays how the values change over the time. The value graph uses auto zoom, so don't worry if it feels odd first.

To open the timeline window:

- Choose View >Timeline (Ctrl + T)

NOTE: To easily panorate the Timeline window, press space bar while dragging the time graph.

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