Dry the Wetspot question

I just installed a backup sump pump which is powered through a smart plug. I am using a Samsung water leak sensor and the “Dry the Wetspot” Smart App to turn the smart plug / backup sump pump on when the leak sensor detects water. When testing this setup, I noticed that the Smart Plug remains on even when the leak sensor is dry. How do I make the App turn off the Smart Plug a short time (several seconds) after the leak sensor is dry? I do not see any way to set / change parameters in the App. Does it need to be done by modifying the code for the App?