Hi: I'm designing a year's worth of English lessons for some Japanese kids, and I'm using Metapost and ConTeXt to generate flashcards for vocabulary training. I have a few questions: (1) I want to keep my Metapost figures defined in a ConTeXt environment file so that I can recall them as I need in future lessons. Is there anything wrong with this approach? (2) How do I make a Metapost figure defined in a ConTeXt file reusable? Do I need to wrap the definition of the figure in a macro so that the figure is recreated everytime I need it? (3) With \useMPgraphic, is there any mechanism to scale the image as with \useexternalfigure? If this is all in the documentation, I apologize. (I would appreciate a pointer to the documentation though :-) )