Jump to navigation link I would like to add a "Jump to navigation link" to the Utility menu at the top.

Setting the path to "#main-content" doesn't seem to work.

The path '' is either invalid or you do not have access to it.

If I view the source of my page the anchor is there:

Jump to navigation

Why can't I link to #main-content?
You would need to use the Menu token module in order to get the path to the current page as you first need a valid path, and then add your anchor to the path.

The tokenized path for the menu item should be something like:

[current-page:url:path]#footer