The current web-UI screen for “Add a job” under “Pruning” provides two “Keep” conditions in the “Retention Policy” section.
I recommend adding at least one more “Keep” condition, as this would support defining more robust pruning strategies (e.g., -keep 30:365 -keep 7:90 -keep 1:14). Adding two additional “Keep” conditions (for a total of four) would probably cover all reasonable edge-cases.
I believe additional “Keep” conditions could be added via the Options line; however, having the additional “Keep” selections on the screen is easier to understand.