I have been trying to connect 2D materials with pre-patterned bigger Au pads on SiO2/Si substrate using the Raith Pioneer electron beam lithography system. I am facing difficulties in importing SEM images into the GDSII editor and drawing connecting electrodes in the GDSII/SEM overlay. Can anyone suggest how to import the SEM image file into the GDSII editor? Further, is it possible to perform 3 point alignment using the same SEM image?