Keyboard Shortcuts - After Effects
From Help Wiki
Layer Transformation Shortcuts
A - Anchor Point
T – Opacity
U – All
P - Position
S – Scale
R – Rotation
Masks
MM - All Mask Settings
M – Mask Path
F - Mask Feather
TT - Mask Opacity
General Shortcuts
Cmnd + Z – Undo
Cmnd + N – New Composition
Cmnd + K – Composition Settings
Cmnd + I - Import
Cmnd + Y – New Solid
Shift + Cmnd + Y = Solid Settings
Toolbar Shortcuts
Q – Shape Tool
G – Pen Tool
Y – Pan Behind Tool
Cmnd + T – Type Tool
Cmnd + B – Brush Tool/Clone Stamp Tool/Eraser Tool
Tips & Tricks
Shift + Drag – Snapping
B - Sets beginning of your workspace in the timeline based on the position of the playhead
N - sets the end of your workspace in the timeline based on the position of the playhead