Hi Gunnar Jonny
I know maintenance work well, my house has just turned 50.

Checked the videos a bit, when I see the midi setup I miss the function text Page up/Down and also Vocal harmonizer On/Off, which I use all the time. Don't know if this is only possible with EC5. I have to spend some time to check if this is possible with midi or USB. There will probably be more information as it is updated. Enjoy your new keyboard, it will be fun.