Sort by Column options in tables and list views
Click on the column header to sort by list by that column, click again to switch ascending or descending
This is available out of the box in NAV 2013 R2 :)
Aleksandar Totovic commented
MS try to do this in v7, but I expect in v7sp1, or in v8.
Jay Malik commented
All reports developed using Pivotier from Centerline Software (www.pivotier.com) use the latest RDL 2008 and 2010 specifications. All adhoc reports allow any column to be sorted including calculated columns.