When using the deckbuilder, I can't filter by box

There's the button to toggle if the cards I'm seeing are in my collection, but I have tons of cards sorted into various boxes.

I can't find the filter that lets me select which box I want to view. Am I missing something obvious?

Thanks for the report! The "Collection Mode" button in our Deckbuilder and Card Database were broken since the migration so thanks for pointing that out. 

It should work again now!

They currently work by checking against your entire collection, regardless of box. I might look into adding individual box support should it be requested/needed. 

Awesome! I just tried making a deck and it's showing my full collection. Thanks a ton for the speedy reply!

Re: sorting by individual boxes, please consider this comment a formal request :p