Does Innuos allow direct editing of metadata using an external editor?

I’m idly comparing Roon core alternatives. I gather that Innuos-based servers allow remote access to the music files, as expected. I also understand there is some sort of built-in metadata editor.

Does Innuos also allow editing the metadata on the files it stores via an external editor (e.g. Yate, MusicBrainz Picard, etc.)?

I believe the answer is, categorically, no. The available metadata editing is described here:
There are a group of specific functions available using a remote computer on the same network as the Innuos server. Roon recognizes these changes correctly in my experience; I’ve had more problems with the Squeezelite/IPeng application though.