Dear list, I have the following sample: \setupinteractionscreen[option={paper,page}] \starttext \ConTeXt\ is awesome! \stoptext The values for the option key should enable "/PickTrayByPDFSize true" and "/Duplex /Simplex" in the PDF file. But I get an undesired "/PrintScaling /None" (I need to reduce the document to printing margins.) Checking lpdf-mis.lua, I see that there are two lists (or dictionaries, maybe [the technical term is beyond my knowledge]) controlling the printing options: pagespecs and plusspecs (both are local). page, portrait, landscape and paper involve fixed in the pagespecs dictionary. But these values don’t involve fixed in the plusspecs dictonary. How can I invoke the plusspecs dictionary from ConTeXt, so I can get duplex printing in the PDF file (or "/PickTrayByPDFSize true") without having to disable page scaling? Many thanks for your help, Pablo -- http://www.ousia.tk