Currently there is no way to save a Pivot Report that is created, which means having to manually create it every time.
Would be great if we could save reports.
Yes this is definitely a missing feature, but we are focused on DC version so we will not be working on this for the near future. You can quickly switch between timesheet view and pivot report. When you switch to a pivot report, all of your groupings are copied to pivot report. You may still need to update some parts of the pivot report but at least you can save most of it. I know this is not enough, we will fix this in the future.
Would be a great feature