Let us save a custom date range a default option

Currently we are only allowed to have 4 weeks, 6 months, a year or even a week and lifetime as the default range. To see other ranges like 3 months for example, we have to manually set it ourselves but it’s not there as a default option. It would make the app a lot more interesting and fun if we were able to select how many months we want to keep as the default and change it when we want and still be able to see the changes in what we listen to with all the arrows.