I created a link field, and disabled its title, put some custom help text for the link field. It only shows the default help text underneath, like below but with no custom help text.
Start typing the title of a piece of content to select it. You can also enter an internal path such as /node/add or an external URL such as http://example.com. Enter
<front>to link to the front page.
How can I only get a custom help text rather than the default help text? Eventually, is there a way to get both?