Analysis of information sources in references of the Wikipedia article "Messerschmitt Me 163 Komet" in English language version.
From caption of photo on page 2 of article: "...(4) Five-position throttle: off, ground idle, flight idle, cruise, max power. (5) Undercarriage extension/retraction [lever].
The Komet's landing gear also proved troublesome, with numerous pilots suffering back injuries as a result of the skid failing to extend properly or failing upon touchdown. Even when the skid operated properly, landings were always without power and at high speed, requiring the utmost care on the part of the pilot to prevent the aircraft from overturning on soft ground.
From caption of photo on page 2 of article: "...(4) Five-position throttle: off, ground idle, flight idle, cruise, max power. (5) Undercarriage extension/retraction [lever].