I'm trying to add a 'back to top' button on the bottom of every page in a site. To avoid having to create this button uniquely on every page I've designed it to live inside my Footer symbol. And since my Header symbol also appears on every page, I figured it would make sense to ID the header and do a same-page link from the footer, so the button would work on every page.
However, it's not working and I can't figure out why. When I give the Header symbol an ID, the ID name doesn't show up in the drop-down list of sections I can link to on that page, like it just hasn't registered the ID at all. I do have an element INSIDE the symbol ID'd, which DOES show up in my list, but the link doesn't work when I select it. I'm not sure where I'm going wrong here--help would be much appreciated!