Good luck with your enhancement request. While I don’t need the feature it makes perfect sense that a smart watering app should be able to handle such a request. However, just read the posts on here from people that have been using it a while. Lots of issues and lots of things that just simply aren’t well thought out.
I submitted an enhancement concerning start / end times for smart watering and the impression I got was, “That’s not how the app works and we aren’t interested in making it more user friendly and flexible for more people.”