- * The list contains no duplicates but is not necessarily ordered. It also may
- * include columns hidden from the current view. To modify (for example sort)
- * the list, you should first make a copy.
+ * The list contains no duplicates but is not necessarily ordered. Columns are
+ * reported in alignment coordinates (base 1), so may also include columns
+ * hidden from the current view. To modify (for example sort) the list, you
+ * should first make a copy.