Blueprints cannot be imported into Artisan content. Only digital art kits can be added to content.
We recommend that you save your blueprints to a folder on your computer. Each time you want to use a blueprint, go to the Home ribbon and click on Add Page or Template > From my computer. Browse to the folder you saved the blueprints in, and you will be able to choose the one you want. Make sure your view is set to large thumbnails, and you will be able to see an image of the page.