I'm afraid we don't have this functionality yet. We have it logged in as a feature request but I cannot commit to a time frame when it will become available. However you should be able to simulate disabling the GPS in the simulator by overriding the behavior of the navigator.geolocation.getCurrentPosition
defaultGetCurrentPosition = navigator.geolocation.getCurrentPosition;
(window.disableGPS && arguments.length >= 2 &&
"The GPS has been switched off."
This way you could simulate
GPS disabling by using the Debug-In-Simulator
functionality and changing the flag in the Console
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