My understanding from the SU help (and from a Google's Sketchup for Dummies book. Problem is, with the mouse configured this way, if I'm say drawing lines and I just want to re-orient my model using the intended mouse shortcut, depressing the scrollwheel activates the Orbit function (as per the keystroke assignment set above), I then have to left click the mouse and drag to orbit the model, then I'm stuck in orbit mode (reclicking the scrollwheel doesn't de-activate the orbit mode) and either have to hit the Esc key or re-select the Draw Line command. The closest I can come to is to change the setting for the MX-600 scrollwheel from 'Universal Scroll' to 'Keystroke Assignment' and set keystroke assignment to 'o' for orbit to use SU's keyboard shortcut. there isn't one that I can find (the Logitech Setpoint SW/MX-600 mouse combo I have doesn't seem to provide separate settings for what the scrolling action does vs what depressing the scroll wheel does). I'm assuming you mean if there is a 'wheel/middle click option' on the Logitech Setpoint software.
Srolling back and forth does correctly zoom in/out. It's as though there is nothing programmed for that function.
pressing down on the scroll wheel does nothing. 'Draw Line') by holding down the scrollwheel (which is supposed to temporarily activate the 'Orbit' function). My goal is to be able to use what I understand to be a built-in mouse shortcut which allows a user to simply re-orient their sketch without having to exit the command they are in (e.g. Sorgesu wrote:if you have a wheel/middle click option, try that