[LewisM]

OK, trying to run Batch Preprocess in PI with images captured with an Starlight Xpress Sony chip CCD - which means Darks and Bias are NOT used, only flats.

BatchPreproces script crashes because it claims no master calibration files (yes, I UNCHECKED used Masters) or no overscan selected (still got NO idea how to do the overscan).

Is there a way to trick BatchPreprocess to run WITHOUT darks and bias? Can I create empty dark/bias files so it will run? OR maybe just take ONE dark file and ONE bias, and let it go?

Yes, I know I can do individual processes in the process tabs, but I am lazy...