Look at the control panel gadget for the mouse.   Logitech allows you to map text commands to extra mouse buttons on their gaming mouse (different section of the Best Buy store last time I looked.)   

Haven't set up the application detection yet.  More often than I want, have to waddle through PADS temporarily and keep sending it "etchedit" and "placementedit".

Which triggers the question:  who is mapping which commands on their mice?   Third one I have is "spin", abandoned after finding the shift-key "smudge" shortcut when moving parts in placementedit mode (triggers the spin or rotate command on that part.)