Dan mentioned the earlier (2.8) version of this.
I updated it for 3.0, hoping that someone would work
on pen-based UI's soon (I have a pen computer...)

from preamble:

"Change Set:		SimulatePenMouse-nk
Date:			24 May 2001
Author:			Ned Konz

This works with 3.0 and 3.1.
It allows you to simulate a pen-based
computer by requiring a mouse button to be
pressed before acknowledging mouse action.
Just do:
	EventSensor requireRedButton
to require the red button to be down, or
	EventSensor requireNoButtons
for normal operation
"!
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