Tips and tricks for the Custom Links module

The Custom Links module doesn't have a documentation page. So in the meantime I'm writing these tips here, in the Flag module's handbook.

How to add a link visible to anonymous users only?

Custom Links doesn't support showing a link to users belonging to a specific role (e.g., "anonymous users"), so you'll have to use a dirty trick: assign anonymous users, only them, some "silly" permission. Something that's harmless. An easy solution is to install the Site Configuration Permissions, which lets you create a permission.

Then, under Custom Link's "Viewer permission restriction" choose this permission.

(Note: administrators will still see this link.)

How to make the link a simple SPAN?

Sometimes you want the link to be just a message. You don't want it to be a link pointing anywhere. To do this you'll use another dirty trick:

Say the link's title is "Something I want to tell you". Change it to "</a>Something I want to tell you<a>" and tick the "Title uses HTML" checkbox.