I can use the sample Project Prediction report to show estimated completion dates based on historical performance, but the sample for historical performance is defined as when the project started. So does not take into account recent improvements / degradations in performance.
I'd like the sample for historic performance to match the timescale the port is filtered on. For example, if I'm filtering the timescale for the report to be between "three months ago and three months future", then the start date for performance should also be three months ago.
How can I set the project start date measure to be equal to the report time filter?