Do not stop a tracking effort when starting a new one
I work on a CNC 3D printer at home and like to keep on tracking my personal time while tracking the machine run time. I found I can track multiple efforts at once by editing the effort and unchecking the "stop". However, this is somewhat laborious. It would be great if you could have multiple tracking efforts going and then when you click the stop button it would give you the options: "stop tracking all", "stop tracking [subtask 1]", "stop tracking [subtask 2]", etc... This would also be a way to track multiple workers on the same task. Each task could have subtasks with each subtask assigned to a worker.