A way to filter for rarely seen Hanzi?

[katja-tutaj]

Hello, I've been using the add-on and I love it, and it's a great tool to check what Hanzi still needs to be learned and add example sentences using that character. I wonder if it's possible to have a way to display characters that are learned only X times? So that we can find the ones that are learned in only one or two cards and add more examples to consolidate them better. Still, even without it, very appreciated!

[trevorld]

• Probably possible to modify the code to do this but you'd need to use different data structures in order to keep track of the information you are interested in (i.e. we currently use a basic set to keep track of seen Hanzi)
• I'm probably not going to try to implement this myself