When pressing play on the transport bar, only the currently active track is played back. What is the point of having multi-track in the Drums tab if each track is effectively isolated? I am dragging independent instruments from Tracker to the Drums tab for grid editor fine tuning, and I would like to be able to hear the full multi-track arrangement played back. Must I combine these individual tracks into one midi file and put them onto a single track in the Drums tab? How do I achieve that, if yes? Thanks