Can someone tell me what are the steps to follow to batch print to a single PDF file? I can print to a regular printer as well as to individual PDF files, but I have not be able to combine more than one drawing together in one file. Attached is a picture of what happens when I try. It will stay at 0% until I close the window (I tried letting on overnight). I can't think of anything else other than I'm missing some step here or there is a bug in the software.