Argh π
Sorry David that you took up your time.
By chance (and your good info “Sticky sidebar) I saw the CANVAS at GP … that’s perfect for me … that’s what it says on the “desktop not” at the beginning – and when it is called on mobile – then it is visible via the menu (where I added it to the canvas widget).
Thank you very much for the really super fast help – I wish you and your team a happy Holidays and come in well in 2021.
Greetings from Munich – Frank