Sorting topics is a way of rearranging them automatically. When you sort, you rearrange a group of sisters among themselves. To sort:
Begin by selecting a topic. This should be either one of the sisters you wish to sort or else the mother of those sisters.
Now choose Topic > Sort. A dialog appears, where you make the following choices:
Sort alphabetically or numerically.
Numeric sorting treats the first characters in each topic as a number. (Thus topics “1c”, “2b”, and “12a” are regarded as numerically ascending; alphabetically, “12a” would come first.) If a topic doesn’t start with a number, it is sorted alphabetically before all numbers.
Sort ascending (“A-Z” / “0-9”) or descending (“Z-A” / “9-0”).
Finally, click Sort Sisters to sort the selected topic itself along with its sisters, or click Sort Daughters to sort the selected topic’s daughters. (Or, to back out without sorting, click Cancel.) The dialog is dismissed and (unless you clicked Cancel) the topics are sorted.