Thank you for your post!
Unfortunately, there are no filters when selecting Flash Cards. This is expected functionality, but I will send this thread to the product manager for their consideration, as it truly makes sense to have that ability. I'm sorry for any inconvenience!
Please let me know if you have any questions. Have a nice night!
Thank you, Chrys. Yeah, that would be great functionality to have in the application. It would be nice to create flashcard sets of topics you need to study more.