Your printing pile
Everything you added while browsing ends up here. Turn the pile into a single PDF and you get one trip to the printer instead of twelve, with the sheets in the order you picked them. Printing opens your browser's own dialog, so any paper size, margin or scale it offers is available under More settings.
Nothing in the pile yet. Open any collection and press Add under a drawing, then come back. What you pick is kept in this browser, so you can wander the whole site before printing.