I have stable blueprints, but I'm not sure how to activate them. I selected "use" and it said they were added to my library. The FAQ wasn't very clear, saying only to do what you did in the tutorial, and I've already forgotten the construction part of the tutorial.

Go to Manor > Craft & Construction. The blueprints should be there under the Buildings Tab. Click on it and if you have all the materials required for building and a pet that meets crafting requirements you're all set to go. Select the pet you want in the drop-down menu (pets need 10 energy to craft) and click create.

Thank you!