Ok, I think I have found a solution. The message "The current mode does not support daylight adjustment" is apparently a wrong translation from Chinese to English (only). This message pops up when you select the section "Color" in the App, but only if you have selected a taste in the "Taste" section of the App which consists of more then one color/any other Taste then Pure. I my view, this popup should have the following text: "The currently selected Taste does not allow to change colors. Please select in the section "Taste" "Pure" and not "Rainbow", or any other color-mix Taste". I can change the Color of the Lightning Strip when I select in the "Taste" section "Pure". Hope this helps.