[fnl]

Thanks for the pointer to the Leitner system (my last name coincides…) But why would you want to use that simplified Leitner system if Anki can track each card individually?

Disclaimer: I don’t know if Anki supports a simplified system that applies spacing to a whole group of cards instead of each card individually, but why you would want that?

[alwayslikethis]

You don't, and it is not desirable. The Leitner system was devised before powerful enough computers were widely available.