Minimal Row Height
Adjust the row height for selected row(s) so that the tallest content in each selected row fits exactly.
This option is only available if the selection contains a row with a fixed height. The command has the same effect as selecting the option for Row Height.
To minimise a single row, it is sufficient to place the cursor in a cell in the row.
To minimise multiple rows, it is sufficient to select one cell from each row to be minimised.