You can acknowledge Hours of Rest entries for your crew throughout the month to highlight that you've seen the entry for both your own reference and for the benefit of other vessel admins.
Acknowledge an individual entry
To acknowledge an individual day, click open the day and then select the Acknowledge button at the bottom right-hand side of the day scheduler.
Acknowledge a week
Once a week has been completed, you can acknowledge the week by clicking on the tick icon on the right-hand side of the calendar.