Ability to see audio waveform and keyframes at the same time
It would be great if you could see a layer’s audio keyframes and waveforms at the same time - maybe a bit like in Premiere. It’s annoying to have to toggle between the two when working with audio. It would also be useful to be able to see a muted layers waveforms.

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Matt Awad commented
You can already do this. Press L once to show levels controls, then hold Shift while pressing L twice to add the waveforms. In general, Shift can be used for displaying multiple properties on the same layer.