Adobe After Effects CS5 Previews (keyboard shortcuts) keyboard shortcuts keys

Shortcut                                                                          Command
spacebar	Start or stop standard preview
0 on numeric keypad*	RAM preview
Shft+0 on numeric keypad*	RAM preview with alternate settings
Ctrl-click RAM Preview button or press Ctrl+0 on numeric keypad*	Save RAM preview
Ctrl+Shft-click RAM Preview button or press Ctrl+Shft+0 on numeric keypad*	Save RAM preview with alternate settings
. (decimal point) on numeric keypad*	Preview only audio, from current time
Alt+. (decimal point) on numeric keypad*	Preview only audio, in work area
Drag or Alt-drag current-time indicator, depending on Live Update setting	Manually preview (scrub) video
Ctrl-drag current-time indicator	Manually preview (scrub) audio
Alt+0 on numeric keypad*	RAM preview number of frames specified by Alternate RAM Preview preference (defaults to 5)
/ (on numeric keypad)	Show current frame on video preview device
Ctrl+/ (on numeric keypad)	Toggle Output Device preference between Desktop Only and video preview device
Shft+F5, Shft+F6, Shft+F7, or Shft+F8	Take snapshot
F5, F6, F7, or F8	Display snapshot in active viewer
Ctrl+Shft+F5, Ctrl+Shft+F6, Ctrl+Shft+F7, or Ctrl+Shft+F8	Purge snapshot