This tab allows you to configure the intervals that are used to generate the chart with the files ages. You may change the limit of each interval, add additional intervals using the '+' button, or remove intervals using the '-' button. You can turn off the creation of the File Ages statistics using the check box on top of the list. This will slightly reduce the memory usage of TreeSize Professional. Furthermore you can decide if the file ages should be determined based on the last access date, the last change date or the file creation date; the default setting is the last change date.