How to create file properties?

[brian]

See here:

Embedding metadata into Exports

Certain formats such as MP4 and MP3 (and many others but not all) support embedded metadata attributes such as Artist and Title. See the MultimediaWiki FFmpeg Metadata page for more information about which formats supports which attributes. In Shotcut, you can embed these attributes into your exports by using the Other tab in the Advanced mode of the Export panel. You can add one of more of the following lines with the value you want on the right side of the = sign: meta.attr.artist.markup= m…