Allow mass update of description in documents

MJ. Smith

I often make parallel documents e.g. collections of doctors of the church for 6 threads of theology, or study Bibles related to the same base text, or bibliographies based of pseudepigraphic documents ... When I select multiple documents, the ability to add description disappears. But I want them to have the same description. Please add description into the mass update and allow me to decide whether or not to use it.