A supplementary view is basically an additional view you can create in the Plugin Configuration. It then appears in the list of views when you go to Switch view in Mediaportal. Or, you can configure the plugin to make it your default view (in the latest version).
For example, I created a view based on the Checked field, which I use for Watched/Unwatched movies. But you could create a view based on any field in the ANT database, like list your movies by media type or media label or director!
For example, I created a view based on the Checked field, which I use for Watched/Unwatched movies. But you could create a view based on any field in the ANT database, like list your movies by media type or media label or director!