Solution : https://service.sap.com/sap/support/notes/179542 (SAP Service marketplace login required)
Key words :
additional key words reportwriter, show additional texts, affected report groups, entire row structure, highest summation level, report painter reports, key column, summation level, report painter, summation levels
Related Notes :
316291 | Report Writer: Collective note 'summation levels' |
210876 | 4.6 row formulas: Incorrect summation level, item |