The illrequestattributes table can hold any kind of attribute for an ILL request. Which attributes are displayed in the ILL detail view (both OPAC and Intranet) are determined by the per backend "metadata" sub, which can also assign labels to each attribute. So if you have an attribute called "lending_library" with a value of "LibraryX", you can call it "Lending library" and make it display as: Lending library: LibraryX To make things stylable the label of the attribute is turned into an HTML ID or class. In the OPAC: <div class="requestattr-Lending library"><span class="label">Lending library:</span>LibraryX</div> In the staff client: <li class="requestmeta-Lending_library"><span class="label">Lending library:</span>LibraryX</li> We should be a bit more careful about how we use the labels in HTML attributes: - Avoid spaces and other illegal characters (ISBN/ISSN is currently turned into "requestmeta-ISBN/ISSN") - Maybe lowercase it? - Be consistent between OPAC and staff client Perhaps it would be an alternative to just use the attribute name from the database? ("requestmeta-lending_library" in this example)