[slowsmile]

@AlanHK...The plugin's prime purpose is to allow the plugin user to easily combine just the chapter title and chapter subtitle in various ways on a single line in the NCX TOC. As I see it, there is no provision or requirement for adding a third heading level or extra subheading to the NCX line, which I think would perhaps over-complicate the plugin and cause more confusion than anything else, which is why I prefer not to add any further heading levels to the existing NCX heading displays for this plugin.