This may work for you. Place the m402.mcs macro to the Macros directory of the profile that you are using. On your ShuttlePro, add the Gcode: m402 , and assign a button to that Gcode.
Every time you press that button, the XY coordinates will be added to the Points.txt file located in the GcodeFiles folder.
I am not sure what formatting your CAD program requires. For example, I believe that Fusion360 requires a .csv file with Z coordinates. You can edit the m402 macro change the extension from .txt to .csv, along with any other formatting changes that you require.