If you need to change only the column headings rather than the symmetry of the report, the <PYRAMIDHEADERS and <BLOCKHEADERS formatting commands are useful.
Use the <BLOCKHEADERS formatting command to change the pyramid-style headers used in symmetric reports to block-style headers such as those used in asymmetric reports. A symmetric report uses the <PYRAMIDHEADERS mode of column layout by default.
Use the <PYRAMIDHEADERS formatting command to change the block-style headers used in asymmetric reports to pyramid-style headers such as those used in symmetric reports. An asymmetric report uses the <BLOCKHEADERS mode of column layout.