Hi,
Up until Cubase 6.5 middle mouse dragging worked in the mixer just like it did in the project window.
Repro:
- Create many tracks
- Fire up the mixer
- Middle mouse drag in the mixer. This should just scroll the mixer left and right, but it does not
This has been broken since Cubase 7 and the issue has been reported under the Cubase 7 Issues Forum:
Thanks