Initialize Multi Program

1. Press and hold the Shift key (k).
2. Briefly press the Utility key (f).
3. Release the Shift key.
4. Turn the page dial (c) clockwise until the Init Multi page appears.
5. Briefly press the Utility key (f) while holding the Shift key (k) again.

Source: Microwave XT — bbff1dd9_waldorf-mwxt_manual.raw (manual)