Bubble’s says there should be 3 Built-in reusable elements in the menu: a header, footer, and signup / login popup (see 1st screenshot), but they do not show up in the menu (see 2nd screenshot, note that the “Header” that you see in the screenshot is one that I created and not the Bult-in one tha should be there). So where do I find those 3 Built-in reusable elements?:
