The Range setting is used to obtain a subset of records based on the selected Sort By field. The Range must represent a continuous series of values such as A through Z (G through C would be invalid).
The left-most Range field represents the beginning value for the Range and the right-most Range field represents the ending value for the Range.
For Example, if the Sort By is set to LastName, a valid Range is Jones through Smith. An invalid Range is Smith through Jones.
See:
Label Manager Contents