I'm trying to use my external trackball mouse to send a middle mouse button click to blender, but the intellipoint software doesn't offer an assignment for middle mouse button. Do you know of a way to get the the scroll wheel button to generates a middle mouse button click, or to get blender to interpret "autoscroll" or something like it, to be middle mouse button? Note that I don't want to do something else like holding down keys while clicking in order to get a middle mouse button click.
