Hotkey to start recording on SE canvas

I have a separate canvas setup for recording clips to be part of my videos without my stream overlays. As far as I can tell, the only way to stop/start recording is to press the button on that canvas, there is no way to use a keyboard shortcut or StreamDeck button to start recording.

I don't record my entire stream, just specific sections, so having a keyboard shortcut or StreamDeck button I could press to stop/start recording “subtly”, instead of having to pause my stream to (very obviously) press the recording button on the SE canvas would be really helpful. Thanks.