Post Controller provide more flexible way of adding an existing Post Rule using Post Controller Widget. See the Post Controller Widget on the right navigation. Select an existing rule from the drop down, see the high lighted section in the slide.
Up on click on the "Update" link from the previous slide, the control will be carried to Add New Post Rule Page with the selected ND TV post. See the high lighted.
Once post is chosen then add desired business logic, in this case Day of the Week Saturday is chosen with option Short Code. So the post will include the short code only for the Saturday.
After updating the Post Rule, user is redirect to Edit Post page from where user started.