If type ||L or ||l specified, then setdef is interpreted as list of pairs, where the first item in each pair is the abbreviated form and the second member is the descriptive form, i.e.:
/01/South/02/North/03/Middle Earth/04/Purgatory//
In the list above, 01,02,03 and 04 are the abbreviated forms what will be used by the application internally, whereas "South", "North", etc. are the descriptive forms that the user will user and type (or select from the combo box.) See the type code definitions for more details.