Interactive Reporting sort lines have two functions:
To maintain a record of sort conditions that you have applied to the data set.
To enable you to specify compound and Nested Sorts.
Sort lines take on a different appearance in each section depending on the data presentation and the types of sorts available.
In the Complex Sorting in the Query, Results, and Table Sections sections, sort lines are drag and drop command lines similar to Request and Filter lines.
In the Complex Sorting in Chart, Pivot, and OLAPQuery Reports sections, sort lines are list driven and include provisions for sorting by aggregate calculations, such as averages and counts.