Some kind soul please help me figure this out.

I'm using AnKing v11. I made a filtered deck with all Pixorize tagged cards (all of them are unsuspended)(first photo). Now, I want to create another filtered deck, with a subheading from Pixorize: Vitamins, for example (also seen in photo 1 in the sidebar), but I'm getting the error message in the 2nd photo.

What I'm trying to achieve by doing this is

1. Seeing the new card number decrease from the main Pixorize filtered deck as I do the sub-tagged filtered decks (it helps breaking them down into topics and seeing that number go down haha);
2. By creating filtered decks for subtags, I'd be focusing on a specific topic during my study session. Every time I finish a topic (Vitamins, or Lipids or Autosomal Dominant Diseases, etc.), I would delete that filtered deck and create a new one with the topic I'm looking to study;
3. I want to do my reviews every day from the main Pixorize filtered deck that includes all, but it's not possible to set New to 0, as in regular decks, so I'm a bit lost on how to do those reviews as well.

I tried searching this subreddit before posting and looking at YouTube but I couldn't find what I'm looking for. Is there any way to achieve this sort of result?

Thanks so so much for the help, it's greatly appreciated 🙏🏼

​

​

https://preview.redd.it/zj58j5ii6tgb1.png?width=1990&format=png&auto=webp&s=c0b4df34f5d42bd0907a6f659cb9801c9f52e535

​

https://preview.redd.it/tdicle8n6tgb1.png?width=1590&format=png&auto=webp&s=dd97053b84cb23caa6eb11090ec38424c67a22dd