Water Tracker very helpful🙂 but i need to reset to zero or 250mL cup size for the current day, and maybe edit prior day when I made error, in low light late at night without reading glasses. No way I drank. 4500mL. On opening app today, the cup size error persists. Only option provided so far within app is to increase volume, starting from 20mL. Either include a -ve option or reset or be able to edit volume of cups drank please.