Mobile editing: Backend not really accessible with user-scalable=no

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My custom theme shouldn't be scalable so it feels more like an app. Therefore the head of my theme has this meta tag:
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no" />

However this leads to a bad user experience while attempting to access the backend features. Without zooming in and out most options can't be seen. Would it be possible to change the scalable value when being logged into the dashboard?