Can you add another filter for champions to include signature level, from highest to lowest and visa

Jgjenno

I want to check which one of my champs have the most signature levels, however this is over complicated in the fact that we have too many champs. Can you please add another filter option to include signature level?

Crcrcrc

Why? Just go to unused sig stones, and click on each champ to see their signature level in the use screen

Pseudouber

I wish they would add a filter for the year the champ is and rank.