Saving Preferences in Shop

I often go to the shop to see the runes I need to buy and its an annoyance when I need to make it show tier 3 only. I know its only a simple matter to make it show only tier 3, but when am I ever going to want tier 2 runes now anyways? I think maybe saving preferences is a good idea. Overall its not such a big thing I just thought maybe it would be a better thing.

Yours Truly, Jawapichuian