Copy Metadata from JPEG to RAW in JPEG / RAW bundle

I normally GEOTAG my images when back from hikes by syncing it towards the GPS file. The app I am using that connect to the GPS can only write GEO data to JPEG files and I am looking for ways to copy this info to the RAW / XMP file. I could not see any means of syncing metadata within a bundle, then I tried to make a metadata macro but there is no functionality to copy metadata in the metadata macro builder. So, I would appreciate any kind assistance in solving this - if at all possible.

Thanks and best regards

CJR