Awesome.. thanks for pointing that out. I can use that one.....but what about where I have the following.....
- July but I need three previous years.. so the display is July 2017, July 2016, July 2015, etc.
- or i have Jan through current month and three prev years... so, Jan-jul 2017, Jan-jul 2016, etc....(jul because the current month is jul, when we get to aug it would be Jan-aug
In the filter formula, we have WindowMax of the date column. You can replace that with Today() and you should get what you need.
Am traveling and so can't provide you a screenshot.