Multiple selection properties - Sorting
Data source tab / Values from applications / Sorting
Every field that can be used for the sorting is listed here.
Every field that is currently being used for the sorting is listed here.
Add / Remove data field from sort order
Move the currently selected field from one list to the other.
Move data field further up / down in sort order
Adjusts the order of the selected field(s). The following applies here:
The field at the top of the list is the main sorting criterion.
All of the subsequent fields sort the result of the the field above it.
Sort ascending / descending
Right-click to open a menu where the sorting can be set to ascending or descending