USPS Label Broker ID QR Code Labels

I am looking for guidance on how to access USPS's Label Broker ID so that I can create shipping and return labels for my customers with QR codes in addition to printable labels. I can see how to do this directly on the USPS site but I don't see this feature in settings. We use EasyShips API, is it accessible via API?

EasyShips customer support has notified me that this feature is available and any guidance will be helpful.