I'm not around much so maybe old news, but a definite improvement over their previous versions. Very clear and informative.
https://cdn.shopify.com/...?3311666817806745570
https://cdn.shopify.com/...oordinates.pdf?18360
https://cdn.shopify.com/...?3311666817806745570
https://cdn.shopify.com/...oordinates.pdf?18360