Topic and Chapter titles displayed in Publication Manager

Currently, in Publication Manager 14.0.3, the Chapters and Topics listed in the publication structure under the Content tab are not identified with any metadata.

Each object simply displays "Chapter" or "Topic" unless I specify something in the relevant <navtitle> tags in the Bookmap/Map.

Under, resources however, the metadata title of each object is shown.

Would it not be possible for the chapter and topic object in the structure list to display the content of the relevant <title> tags?