To move the selected columns as a unit to a different location, press the mouse button within the header area of any selected column. The pointer will change to an arrow with a small box at its lower right corner.
The divider at the left edge of the column being pointed to will be enlarged and highlighted. Drag the divider to the desired location and release the mouse button to move the selected columns immediately to the left of the divider. The moved columns remain selected.
If you drag the divider to a position within the currently selected range, no movement occurs. If a column is not selected, you cannot move it.