knime categorical column sub merged

[victor_palacios]

I think you are looking for this:

Merge and center after pivoting

Hi @Skirpichnikova_Ksenia - If your final report is in Excel format, then you could use the Continental Nodes for KNIME, and specifically the XLS Cell Merger node, to adjust the format of your spreadsheet after the data table is written out. If you are generating your report in some other format I suppose we need to know what that format is.