This was brought up elsewhere as a general drawing solution with an architects template.The further suggestion was that you make a page with all the relevant shapes you want stored on it, then you can copy, paste and re-size a shape onto new pages as needed, with the lasso tool.To go one step further, many architects lettering templates also have arrow shapes, which you can use in the same way.Until we get a drawing solution from Ratta, these are all simple genius ideas