Manually link to existing content or a custom url through a meta box on the writing page.
Just too much of a hassle to integrate on each template; and every template update will remove those changes, so they will need to be inserted again every time there is a template update.
The admin side is nice, but on the client side it needs to be put by hand where you want the link to show up. This could (and should) be automatic like other plugins do (ex: Manual Related Posts), no edits should be needed manually on the templates code.
You must log in to submit a review. You can also log in or register using the form near the top of this page.