Adobe After Effects CS5 Masks keyboard shortcuts keys

Shortcut                                                                                           Command
Ctrl+Shft+N	New mask
Alt-click mask	Select all points in a mask
Alt+` (accent grave) or Alt+Shft+` (accent grave)	Select next or previous mask
Double-click mask with Selection tool or select mask in Timeline panel and press Ctrl+T	Enter free-transform mask editing mode
Esc	Exit free-transform mask editing mode
Ctrl-drag	Scale around center point in Free Transform mode
arrow key	Move selected path points 1 pixel at current magnification
Shft+arrow key	Move selected path points 10 pixels at current magnification
Ctrl+Alt-click vertex	Toggle between smooth and corner points
Ctrl+Alt-drag vertex	Redraw Bezier handles
Ctrl+Shft+I	Invert selected mask
Ctrl+Shft+F	Open Mask Feather dialog box for selected mask
Ctrl+Shft+M	Open Mask Shape dialog box for selected mask