Hi, I've just commited a new version of the plugin 210/225 adapted to the 2.2 version (with MARC authorities) How to set up value builder for 210c (editor) and 225a (collection) : * create a authority category called "EDITORS" * set : 200$a => ISBN 200$b => editor 200$c => (repeatable) collection. Then enter, for example : $a 23 $b Hachette Litterature $c collection1|collection2|collection3 Map your "editor" field to plugin 210c, your "collection" field to plugin 225a Once you arrive on the editor field, if the beginning of the ISBN exists, the editor is automatically found. Once you arrive on collection field, click on ... you can choose in the collection list. The 210c / 225a comes from the UNIMARC editor/collection field, but should work as well with MARC21. (Note the 200$a $b $c are hardcoded, but everything else is not) -- Paul POULAIN Consultant indépendant en logiciels libres responsable francophone de koha (SIGB libre http://www.koha-fr.org)