You can send additional traffic directly to a specific link in a rotator by using the links direct link.
You can find the direct link for a rotator link by accessing the rotator links edit page. At the bottom of the edit a rotators link page, you will see a direct link you can use to send traffic directly to the desired link.
All rotator tests, and link tests you have set are still enforced. If a click can’t be used by the link you sent traffic directly to, that click will be sent on through the rotator as if it had entered the rotator normally.