merge cells with same values оn previous column row

[UUsatova]

I have a list of data retrieved from a database that contains a lot of redundancy. The data includes fields such as user, users access groups, access levels within each group, and doors within each access level. When there are identical values across multiple rows, i wanna to merge those values. However, the merging should happen within the record of the previous column.

Does anyone know if it is possible to do this with dynamic jasper