Hi DottScott1,
The steam License no longer supports geo-referencing or XMP export as of 13thFeb 2020.
There are a couple of other ways you can export camera alignment, and these features are enabled in the steam license with an agreement to share some of your data, which is more clearly explained in a pop-up.
Firstly you can use Export - Registration in the Alignment Ribbon, this gives you a number of different formats to save your cameras positions and orientations. Or you can go to Export - Model in the Reconstruction ribbon, and if you choose either FBX, or ABC formats, you will have the option to save your cameras with the model.
If you would like to upgrade your license to include XMP export it is included in all of our non-steam license models PPI, PGM, and the new ENT license.