/REFERENCE xOffsetR yOffsetR [systemNameRef] or /REFERENCE NO ! no reference position of off-source reference subscans Real :: xOffsetR ! x-offset Real :: yOffsetR ! y-offset Character :: systemNameRef ! name of system ! see /SYSTEM for choices NOTE: with the usage /REFERENCE xOffsetR yOffsetR, both parameters are requi but you can replace either parameter with * to leave it unchanged.