You can flip the axes of the grid, exchanging the columns with rows, in one of the following ways:
· Point to the upper left corner of the grid to expose the Rotate button and click it.
· Click on the heading of the dimension on the horizontal or the vertical axis. From the dimension menu, select Replace <dimension name> with. Note that at the top of the list is the dimension of the opposite axis, which is also marked by a special icon (Reseller Type in the following example). Choose that dimension.