We enter time using the latest version of the duration-based timesheet. Is there a shortcut or feature that allows you to enter additional time to a cell in your timesheet simply by pressing the "+" key? For example, if in my timesheet I had entered 2.5 hours on a project but later that day worked on it for another 3.75 hours. Is there a quick way to add this 3.75 hour to the 2.5 hours already entered in the timesheet cell so that the system calculates the total for me?