default remain time
I recommend the pie chart and bar chart that contains 24hr a day, and reveals those time we didn't set timer.It could be clearer to check how much time ratio we spent on each tasks.
I also want each task can be set default timer, so I don't have to set time every time.And I want to add more tasks a time. For example, if I want to add ''Working 25min * 12 '' today, I don't need to operate 12 times.(like pomodoro)