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Thanks for asking.
Sadly, Miro is not very keyboard-friendly and doesn't have any
AppleScript support, either. This makes it essentially impossible to
offer any in-depth control like for other applications.
For this reason, Miro control is currently limited to the control of
running video playback, where a defined set of keyboard shortcuts is
available.
For other Miro GUI control, I recommend to use Remote Buddy's virtual
mouse located Input devices > Virtual mouse in a stock RB menu.
Best regards,
Felix Schwarz