Create or adjust a dropdown for reservation's age range statistic. 

The new field in the Reservation Details tab, age breakdown, will show default age ranges, <11, 12-26, 27-35, 36+.

You can create your custom age ranges in Property Settings / General / Reservation Settings.

Click on the edit icon to edit the selected range, delete unused ranges or add new ones with the Add range button.

In case you add only one value, the system will automatically add < or + sign, depending on the value location.

> Tip: You can delete the Age breakdown field from Reservation Details tab by deleting all ranges from the settings.