sorting/filter options

please make us able to select couple options.
for now we only can select 1 level rarity + 1 attribute + 1 member.
i am hoping we can select like 2 rarities or attributes or 2 or more members.
lets say i want to look up for riko and umi UR and SSR only. i can select 2 members + 2 class rarity. or maybe i want to look up at SSR and UR Cool 2nd year only, etc. i hope you guys will put this option to consideration

The issue names no files or tests; start by locating the current sorting and filtering implementation and its API entry point. Define the supported multi-selection behavior from the examples, then verify that requests can combine multiple rarities, attributes, and members.

Written by the indexing model from the issue text.