Workspaces: Rolling Custom Date Ranges - relative to selected time Date Ranges

It would be great to create a date range which is relative to the Date Ranges selected in the Panel. Right now, I can only visualize a fixed date range for a previous reporting period.

Example: I create a report with last week as previous comparing period. When I change the Date Ranges in the Panel (e.g. last quarter) it will still compare the whole last quarter with last week.