Adobe Photoshop CS3 Keys for using the Animation palette Timeline Mode (Photoshop Extended Only) keyboard shortcuts keys

Shortcut                                                                                           Command
Spacebar	Start playing the timeline or Animation palette
Alt + click the current-time display	Switch between timecode and frame numbers (current time view). (Alt + click the current-time display in the upper-left corner of the timeline).
Alt + click	Expand and collapse list of layers
Hold down the Shft key when clicking the Next/Previous Frame buttons (on either side of the Play bu	Jump to the next/previous whole second in timeline (during playback)
Hold down the Shft key while dragging the current time.	Increase playback speed in Photoshop Animation palette (Timeline mode)
Hold down the Ctrl key while dragging the current time.	Decrease playback speed
Shft-drag	Snap an object (keyframe, the current time, layer in point, and so on) to the nearest object in timeline
Alt-drag (first or last keyframe in the selection)	Scale (evenly distribute to condensed or extended length) a selected group of multiple keyframes