You can use the regular numeric keys on your regular keyboard. However, a more useful setup is a separate numeric USB keypad that is a frequent add-on for notebook computers. This allows you to hold the keypad in much the same way as you would have used the original hand controller.
Keypad information:
Slewing Functions via numeric keypad (USB Keypad, or Keyboard Keypad).
The keypad functions is only attached to the 'SLEWPAD' window. Just select the slew pad window and all key press commands will be recognized. You can reduce the size of the slew pad so that it does not hide any parts of the screen that you need to view.
You can slew 'diagonally' using the keypad:
Button 7: Slew North West
Button 8: Slew North
Button 9: Slew North East
Button 4: Slew West
Button 6: Slew West
Button 1: Slew South West
Button 2: Slew South
Button 3: Slew SouthEast
Left Arrow: Slew West
Right Arrow: Slew East
Up Arrow: Slew North
Down Arrow: Slew South
Button 5: EMERGENCY STOP/Disable Tracking
Button 0: Activate Sidereal Tracking
Keypad Slew rates are based on the SLEWPAD Rate slider buttons