I think it would be beneficial to receive a warning if you load an XMP file that contains information in fields that Photo Mechanic supports but are not currently enabled in the Metadata Template Panel.
Ideally the warning would alert you to which fields that are not enabled contain information.
I do not have any field enabled that I do not have visible. This is because I do not want to be attaching information to photos unintentionally. However if a client sends me an XMP file with I want to be sure that all the information is attached without having to change the Metadata Template Layout
Great suggestion, Josh. Please upvote or leave a reply if you also want to see this feature.