Hello,
Because FA media is proprietary, I’m afraid I can’t be of much help there unfortunately. You might try searching around online, but owing to the copyrighted nature of that material I won’t be able to be of any more specific help than that.
You can find a bit more information here that might be helpful: AnKing Step Deck Wiki
Please let me know if that answers your question, and if there’s anything else I can help with. 