Adobe After Effects CS3 Using and modifying views keyboard shortcuts keys

Shortcut                                                                             Command
Optn+1, Optn+2, Optn+3, Optn+4	Show red, green, blue, or alpha channelas grayscale
Optn+Shft+1, Optn+Shft+2, Optn+Shft+3	Show colorized red, green, or blue channel
Optn+Shft+4	Toggle showing straight RGB color
Double-click Hand tool	Reset view in the Composition panel to 100%and center composition in the panel
. (period) on main keyboard	Zoom in in Composition, Layer, or Footagepanel
, (comma)	Zoom out in Composition, Layer, or Footagepanel
/ (on main keyboard)	Zoom to 100% in Composition, Layer, or Footagepanel
Shft+/ (on main keyboard)	Zoom to fit in Composition, Layer, or Footagepanel
Optn+/ (on main keyboard)	Zoom up to 100% to fit in Composition, Layer,or Footage panel
Cmnd+J, Cmnd+Shft+J, Cmnd+Optn+J	Set resolution to Full, Half, or Customin Composition panel
Cmnd+Optn+U	Open View Options dialog box for activeComposition panel
; (semicolon)	Zoom in Timeline panel to single-frame units
= (equals sign) on main keyboard	Zoom in time
=- (hyphen) on main keyboard	Zoom out time
Caps Lock	Suspend image updates
' (apostrophe)	Show or hide safe zones
Cmnd+' (apostrophe)	Show or hide grid
Optn+' (apostrophe)	Show or hide proportional grid
Cmnd+R	Show or hide rulers
Cmnd+; (semicolon)	Show or hide guides
Cmnd+Shft+' (apostrophe)	Turn snapping to grid on or off
Cmnd+Shft+; (semicolon)	Turn snapping to guides on or off
Cmnd+Optn+Shft+; (semicolon)	Lock or unlock guides
Cmnd+Shft+H	Show or hide layer controls