Display Sound Waveforms from Built-In Microphone in a Scope (SPARKvue)

How do I use the scope mode within SPARKvue with the built-in microphone? It is possible to use the built-in microphone signal to display the wave form on an oscilloscope (scope) display.
As of SPARKvue version 3.2.0 (released June 2018), the built-in microphone can be accessed on Windows, Android, Chromebook, and iOS devices.

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