Several questions

[simoncn]

The filename will not be shown if you follow all the instructions that I posted for Title:TitleValue. If the filename is being shown, you are missing a required tagFormat setting. Please post all of your settings for all properties.

You can use one tag in place of another tag if the tag is absent or empty. To do this for Composition and Title, use the following in tagValue:

Title.default={Composition}