Drillthrough data is displayed in columns. You can use the textured areas in column headers to rearrange the columns by dragging and dropping.
To switch two columns:
The header underneath changes color to indicate that you can drop the tile. The columns will switch places. (There must not be an arrow in the dragged tile. Otherwise the dragged column will nest beside the one underneath instead of swtiching places with it.)
To insert a column on the right-hand side of another column:
The header underneath changes color. When the image on the dragged tile appears as an arrow pointing to the right, as shown in the following picture, you can drop the tile. The top column will be inserted to the right of the bottom one.