Before custom content titles can be added, the producer must exist within your custom content section of the admin portal.
To add a new producer, click on the Producers tab, and then on the New Producer button.
This will open a popup window containing the below. Enter the producer display name and a complete path to the producer logo if you have one. The producer logo must exist on your server already, or you may use a link from another website, assuming you have permission to do so. The logo path should start with HTTP://.
Click the Add Producer button to save your new producer.