Blueprints

Blueprints are a piece of paper that tell you how to build a ship module, its stats, and the materials required to build said module. You can do "/blueprints" and a blueprint GUI will pop up. From there, you can click on the module types, and click on the modules. When you hover over a module, it will tell you how many slots it uses, and what is required to build it. If you click on the module, it will give you a piece of paper. While holding this piece of paper, the shape of the module will appear where your cursor is. If the color is red, that means the module is blocks. If it is yellow, that means you don't have the required items. If it is green, that means you have the items, and the space required, and from here you can right click with the paper in your hand to place the module down. You can also hand build modules.