Unable to Change Focal Length

I have a modified DJI Phantom 4 with a 4.35mm lens in comparison to the 3.97mm original lens. I’m not sure if it matters when the software is doing it’s stitching, but thought I would post because there doesn’t seem to be any other info on the forums about this since Dec 2015 where DD said they would add it to a feature request for the Inspire X3.