For those seeking PAN functionality within ArchiCAD 11.x using Logitech LX7 Optical Cordless Mouse, perform the following: Open Logitech Setpont Application, Select My Mouse Tab, Select LX7 Mouse from dropdown Box, click on Left Scroll and reassign button functionality by selecting OTHER then choose MIDDLE BUTTON; click on Right Scroll and reassign button functionality by selecting OTHER then choose MIDDLE BUTTON; Click APPLY.
By reassigning the button to Middle button, you will gain very useful PAN functionality while losing limited SCROLLING functionality.