"you can use the blend tool to distribute one copy of the card down the page by positioning the end card first, or draw out some guides and snap to them, or.."
ok, but can you distribute the cards on a page this way with exact offsets in milimeters? And using snap to guides, imagine how long would it take to make manual copies of cards when duplicating on a A0 format page (including making guides first, and perhaps also including cropmarks).
Copying/moving/rotating in distance increments is a basic feature IMHO.
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