NCP Video Previews

Hallo,

I installed imagick to get Video (MP4) Previews…
So, I thought I also have to add MP4 in the config.php file. But there is no section ‚Äėenabledpreviewproviders‚Äô altought pictures previews are already there. Do I have to add this section or is this managed somewhere else in NextCloudPi?