@time Hi,
@johannesbonn is totally right.
See this: https://community.openhab.org/t/timeline-picker-to-setup-heating-light-and-so-on/55564
I think it’s exactly what you’re looking for and the usecase with two states on, off is the basic usecase.
It’s also possible to define other states and more then two switch states (e.g 25%,50%,75%,100%).
You will find all parameter in the descripten in the first post in the link above.
The intension for this time line picker is the basic UI.