Rune Upgrade Recipes Filter Sorted by Rune-Lvl

A feature Request (hope i didn't oversee something like it already here):

Maybe you could add a filter for the recipes section of your database to quickly see all rune upgrade recipes. It would be nice to sort them by rune-lvl so one could see all possible upgrades with the owned gems / runes.

I know there are some out there on other sites, but none are really beautiful. I think this could be made very nice with your layout.