How can I do bulk ACR Merge To Panorama (not Photoshop Photomerge) ?

Is there a way to automate or script ACR Merge to Panorama feature to process multiple panos automatically? I know how to use Extended Script for batching Photoshop's Photomerge feature, but that doesn't allow me to save the output to DNG. The ACR Merge feature can save to DNG, but I don't know if there's a way to script it instead of using ACR GUI.

Thank you.