FSRS recently introduced deck-wise retention, allowing users to override the global retention setting for specific decks. For example, if my overall retention is set to 70%, I can set one important deck to 90% to prioritize it before an upcoming exam. This helps me focus on high-priority material while managing my larger backlog. Similarly, it would be useful to have a flag-wise retention feature. With this, cards marked with a specific flag (e.g., red) could follow a custom retention rate—...
