I’m thinking in terms of eventually mirroring that with the pads… unlight the hot cue, loop, roll, slicer selection buttons and have the pads slide the key selection up there on screen. Using the on screen key change would still be permanent change, while the pads would be temporary until you hit Shift. Gemini can already do this on their SDJ.
You can try my Axure mock up of this kind of thing. There’s still space to the left for the new match / sync key toggle. Step one, though, is for them to move the current stuff back to the top and make it larger. Too small, now, and in a worse spot in 4.0.0, even with the current implementation.
Not yet. I personally think even the layer stacking on the player separates is now worse than before. If you want them stacked, you must have both moving waveforms on screen, not just both whole static waveforms and only the active layer’s moving waveform, and they don’t swap when you change layers. Probably fine with an LC sitting above your main player, but weird without it.