Instead of selecting between 2-25 blocks to begin confirming, the user should be able to select something like:
- Confirmation not needed / whenever (target )
- Confirmation within 2 weeks (target 1024 blocks)
- Confirmation within a week (target 512 blocks)
- Next-day confirmation (target 128 blocks)
- Priority confirmation within 24 hours (target 32 blocks)
- Urgent confirmation, ASAP (target 2 blocks)