I do not want to set data. I only want to select a single cell at a position (row, column) which is not the current selected item. (Sorry, obviously my title was wrong)

I know how to get the index of the current QModelIndex and from that I can get the information about the current row and column. But I can not create a ModelIndex and change its row and column. Therefore a setCurrentIndex is not helping, since its row and column can not be modified.

There exists a selectRow and selectColumn, but I am looking for a selectCell(row, column).