Button panels for multi-touch interaction

[stp]

Hello all,
In the process of making a multi-touch display front-end, I’m adding button panels for (at least) transport buttons, a jog wheel and a few common accelerators. The images below show 2 current drafts for comment. What other operations would you add to these panels?

[color=var(--tertiary)]
[color=var(--secondary)]panel3[color=var(--secondary-high)]1690×54 24.8 KB[/color][/color][/color]

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[color=var(--secondary)]panel4[color=var(--secondary-high)]1690×55 30.3 KB[/color][/color][/color]

Stephen in Ojai/CA/USA