File what you want built and vote on what other people filed. One idea per post, written as the problem you have rather than the feature you pictured. The product team puts a status on everything here and writes a line saying why, including the ones we decline.
When I change a tolerance I have no way to find out what the change would have done until the next month of invoices arrives. So I either ship the change and watch, or I leave it alone. I want to point a modified rule set at a period that has already closed and see what would…