Add goal dailies or habits

[EnrGer]

I think it would be a good idea to add the possibility to set goals for the dailies or habits.
For example:
The habit "Drink water" would be better if I could set a daily target that can be updated during the day.
It can be defined a labeled button "+0.2" and every time it is pressed the daily goal value is updated and the habit/daily is completed when the target has been reached.