Context menu "Open with..."

[Stephan-P]

I created my first markdown file using the Sync-in Markdown editor, which was actually quite a joy.
But then I had the desire to export it as PDF, which would have been possible if I would have been able to open the file in the other app on my server: Collabora Online.
If the server has multiple apps available for a certain file type, could "Open with..." be added to the context menu?