Adobe Illustrator 9 Pen/Reshape keyboard shortcuts keys

Shortcut                                                            Command
Optn	Add-anchor-point and Delete-anchor-point tool toggle (either selected)
Optn	Use Add-anchor-point tool (Scissors tool selected)
Optn	Use Convert-anchor-point tool (Pen tool selected)
Optn	Smooth and Pencil tools toggle in Adobe Illustrator
Shft-drag	Constrain direction line angle to multiple of 45º with Direct-selection or Convert-anchor-point tool
Cmnd-J	Join two selected endpoints
Cmnd-Optn-J	Average two selected endpoints
Cmnd-Optn- Shft-J	Average and Join two selected endpoints
Drag, then Optn-release	Close path while drawing with Pencil or Paintbrush tool
Optn-drag tool	Cut in a straight line with Knife tool in Adobe Illustrator
Optn-Shft	Cut in 45º increment with Knife tool