The Events system allows you to view calendar items attached to all your brewery brew or ferment logs. This can be a reminder to clean the kegs the day before a packaging run. Or review your ingredient stocks a week before the double-batch brew day to make sure you have time to order any missing components.
These event items can include reminders to take temp, gravity, and pH readings each day. Or to do the dry-hop addition 5 days into the ferment. And an event to remove the dry-hop after 8 days after the ferment has started.