Album "Sort By" options

[maridvnvm]

Would there be any chance of adding some extra "Sort By" criteria to the Albums. I would hope for Sort By - Reference for example, which would allow me to look at my album of coins of Probus from Lugdunum for example in a more structured manner than just using the Create Date given that all the other sort criteria are fairly meaningless for me in this instance.
Regards,
Martin