To add a tag, go to the project page and it is in the bottom left. In there type @comp, and press space.
When you create a project, also add a tag with your name on it; for example - FinleyCoomer.

Please be fair and only create one project. Also if you edit other projects, or edit these sections, you will be disqualified when we find out. You are not allowed to remix or use the backpack.