IMPORTANT NOTICE! This information is outdated and should not be used for pixels that fire simultaneously for the same conversions!
Instead, follow this link and implement the instructions there!
You can associate additional pixels as event sources with your catalog to eliminate the Yellow Warning signs in FB Pixel Helper.
Simply click on the catalog in the Trackify Catalog List. that will take you here in Facebook:
After you execute the clicks in the indicated sequence, select any pixels you want to associate as event sources in the following dialog and save: