Merge All from Auxiliary
This program command enables you to add all lines from the Auxiliary Log into the Main Log. The contents of the Auxiliary Log are left untouched. Once in the Main Log, added QSOs are then sorted by date and time, though by clicking any of the column headers in the Main Log you can sort them in lots of other ways as well.
If you wanted to add just a few of the lines in the Auxiliary Log to the Main Log, you can do that by first selecting them, and then right-clicking the selection and choosing 'Merge Selected with Main'.