Would be nice if there was an option to see the total time spent working on a Revit file. A clock, that starts timing every time you open a Revit file and adds up the time all the way back since file creation. It would help with invoicing and once you know how much hours you spent on a type of project, it helps with estimating future timelines.
With ongoing projects that last several months, it is hard to remember how much time was spent working on a project. A timer would be really helpful.