combining flashcard piles

i saw a ted video on the fact that doing more than one subject’s flashcards at one time at random can increase mental output and neural connections, better enhancing memory. remnote only allows u to do all the cards in a deck, file, or folder or all the cards u have in general, but for a guy like me with 15k rems, this is not ideal.

What if you could select which decks u want to learn, from different folders or whatnot, and be able to do just the combination of flashcards u want to do, all shuffled together to integrate thinking and memory induction response?

food for thought.