Adobe After Effects CS5 Activating tools (keyboard shortcuts) keyboard shortcuts keys

Shortcut                                                  Command
Alt-click tool button in Tools panel	Cycle through tools
V	Activate Selection tool
H	Activate Hand tool
Hold down spacebar or the middle mouse button.	Temporarily activate Hand tool
Z	Activate Zoom In tool
Alt (when Zoom In tool is active)	Activate Zoom Out tool
W	Activate Rotation tool
Alt+W	Activate Roto Brush tool
C	Activate and cycle through Camera tools (Unified Camera, Orbit Camera, Track XY Camera, and Track Z Camera)
Y	Activate Pan Behind tool
Q	Activate and cycle through mask and shape tools (Rectangle, Rounded Rectangle, Ellipse, Polygon, Star)
Ctrl+T	Activate and cycle through Type tools (Horizontal and Vertical)
G	Activate and cycle through pen tools (Pen, Add Vertex, Delete Vertex, and Convert Vertex)
Ctrl	Temporarily activate Selection tool when a pen tool is selected
Ctrl+Alt	Temporarily activate pen tool when the Selection tool is selected and pointer is over a path (Add Vertex tool when pointer is over a segment; Convert Vertex tool when pointer is over a vertex)
Ctrl+B	Activate and cycle through Brush, Clone Stamp, and Eraser tools
Ctrl+P	Activate and cycle through Puppet tools
Alt (in shape layer)	Temporarily convert Selection tool to Shape Duplication tool
Ctrl (in shape layer)	Temporarily convert Selection tool to Direct Selection tool