Hello @Ildi747 and welcome to the Community. The Interval Workout shortcut has very specific settings. You select a 'move' interval, a 'rest' interval, and the number of reps. It has a distance goal option in the settings, but the maximum distance is 5 miles. The Interval Workout shortcut won't help you.
Laurie | Maryland
Sense 2, Luxe, Aria 2 | iOS | Mac OS
Take a look at the Fitbit help site for further assistance and information.
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