When filling in a timesheet, typically I start with the time spent on side tasks, e.g. half an hour on a meeting, half an hour supporting a particular customer. But the majority of my time is spent on the project I am currently working on.

It would be great if you could set a default project, default total hours per day and then use a shortcut key for example 'R' to fill in the remaining time for the day in the default project. Create a new Line for default project with (Default Time - Total Line Time) when pressing shortcut key, on highlighted day.