kdenlive API for video editing hardware/software console?

I was wondering,
although kdenlive doesn’t support API for external control, I’m curious what power users think about dedicated video editing controls be it hardware or software (say on a tablet). Are consoles useful or gimmicks? Personally, I’ve never felt they are REALLY all that useful for offline video editing but then again, I’m not a professional or even a power user.

If you think editing consoles are useful, which controls would be most beneficial? What would your ideal console look like?