in a DELICIOUS twist, despite what the Miele instructions said, the app is not able to initiate the 'TwinDos' cleaning. HOWEVER! The app did contain a link to an actual PDF manual which tells me to press an invisible button, keep it pressed, and then close the machine door, to get to a "programming menu". And option P68 there set to '1' enables the cleaning program. Next up, how to disconnect the machine from the internet again. https://www.youtube.com/watch?v=IV7hWqRr_FQ