Fluid watch issues

Hi, could there be a option looked at to reset the fluid intake at a certain time of day rather than having a rolling 24 hour period. This is because such as one of our adults who can only have 1000mls a day, she may decline all fluid until 11am one day and drink from 8am the next - which then makes her look like she's had too much fluid or it makes adult look like they have drank a lot already this morning, when really that amount is the last 24 hours and you've to stay near the full 2000mls total as otherwise this means they are under hydrated.