Review settings
Presets, daily limits, the retention dial, and learning steps.
Every deck points at a preset, a named bundle of scheduling settings. Presets are shared: edit one and every deck using it follows. That is the feature, not a gotcha; it means "my language decks behave like this" is one edit, not ten.
Mnemo ships a Standard preset that new decks use. You can add your own from the Review settings dialog, reachable from any deck's menu.
Daily limits
New cards per day and Maximum reviews per day are the throttle. The defaults (20 new, 200 reviews) suit most people; if a backlog is drowning you, lowering new cards is almost always the right lever, because every new card is a stream of future reviews.
Desired retention
The retention slider (80% to 97%) tells the scheduler how much forgetting you will tolerate. Higher retention means shorter intervals and more daily work; lower means fewer reviews and more lapses. The default of 90% is a good deal for most material. Nudge it up for high-stakes exams, down for low-stakes volume.
Learning steps
The minute-scale ladder new cards climb before they graduate to day-scale scheduling, written as spaced values like 1m 10m. Fewer or shorter steps push cards out to FSRS faster; more steps give shaky material extra same-day repetitions. If you do not have an opinion yet, the default is fine.
Session options
Shuffle card order randomizes the queue, which prevents your memory of "what comes next" from doing the card's job. Auto-reveal answer flips each card for you after 5 or 10 seconds, useful for keeping a session moving at a fixed tempo.
Related
- How scheduling works for what these dials actually feed.