Mask panel

Bezier Roto Mask	Shift+M
X-Spline Mask	Shift+X
Rectangle Mask	Shift+T
Ellipse Mask	Shift+E
Lasso Mask	Shift+L
Colour Roto Mask	Shift+C
Paint Mask	Shift+P
Colour Selection Mask	Shift+S
In Point	N
Reset In Point	Shift+N
Out Point	O
Reset Out Point	Shift+O
Insert Points	I
Edit Inner	Z
Edit Outer	X
Track Backwards	[
Track Backwards Frame	Shift+{
Track Forwards Frame	Shift+}
Track Forwards	]
Remove Earlier Tracking Keys	Shift+(
Remove Tracking Key	Shift+
Remove Later Tracking Keys	Shift+)
Remove Earlier Keys	;
Remove Key	'
Remove Later Keys	#
Previous Keyframe	Shift+<
Next Keyframe	Shift+>
Activate	Q
Deactivate	Shift+Q
All/None	W
Invert Mask	Y
Group Vertices	Shift+G
Duplicate	Shift+D
Delete Mask	Del
Transform Mask	J
Show Masks	K
Show Handles	H
Show Outer Boundary	U