How To Combine Two Paths Into One
If you’re using the Pen tool (P), and you’ve created multiple paths within your document, these paths are totally separate, and are moved independently of one another. However, if you want these paths to move as one unit—combine them. Just switch to the Path Selection tool (Shift-A until it comes up), then go up to the Options Bar and click on the Combine button. Now when you move one path, all the combined paths move right along with it.