Currently the OSD doesn't show up if there is no application active in the group and you turn the knob.
It would be great if a greyed out OSD can be shown if that is the case:![](https://midi-mixer-forum-uploads.s3.us-east-1.amazonaws.com/2022-04-21/1650567481-456373-midi-mixer-rly9qr09l2.png)
Or a notification saying "no active applications" or something along those lines.