The birthday list filters entries with the topic Birthday. Use the birthday range to limit the number of entries to a specific day or period.
To split the list into different lists, for example a separate list for families, create a new Topic called Family Birthdays, and change the birthday filter. Both groups of birthdays will still show up in the General Todo List.
Once you are done with your congratulations, click on the button “Move to next year” to make sure that you receive a reminder for next year.