It is easier to use Advanced Editor for copying and pasting fields with more than one subfield into a bib record. We would like for users who are only able to use Fast Cataloging to be able to use the Advanced Editor because copying things like subject headings are more complicated in the Basic Editor. Currently you need the edit_catalogue permission in order to access the Advanced Editor, and we would like to be able to give the Advanced Editor to certain users without giving them full bib editing permissions.