Missing cards for deck (when already used)

Could we please have a feature which counts as missing or at least mentions that the cards are already in use in another deck? in the list of missing cards for a deck?

If I need 3 blue cards for a Viktor deck, and I have them but they’re already in another deck I use (and i don’t have more copies in the collection), they should count as missing or already in use

I feel like it’s very important for tracking big collections and multiple decks