Doug Engelbart 5-key chord keyboard emulator


I'm looking for an emulator of the original (or derived)
5-key chord keyboard (or keypad, as you wish) by Doug Engelbart.

	http://sloan.stanford.edu/MouseSite/1968Demo.html

I can't find documentation about the layout and chord combinations
of the keyboard.

Thank you all :)

P.S: reply also at mail address if you can. Thank you

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Diego Billi - Email: dbilli_NO_SPAM_@xxxxxxxxxxx
Homepage: http://www.cs.unibo.it/~dbilli
 "Ecco; Io m'inquarto, io paro, io fingo, io scocco...
  Giusto alla fin della licenza io tocco."

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