This image is a screenshot of a sample PAR URL table with the Group By option selected. The PAR URL is showing in table form with the query parameter data?view=table appended to the PAR URL.

This shows two tables on the left, and a Group By area on the right with COUNTY selected. Two tables on the left show values for the COUNTY column: with values shown First, and Main and other columns showing their corresponding table values for SPECIES and HEIGHT columns.