Create the first text box in the desired location. Copy and paste the text box so you have a text box that is the exact same size.
Use the X and Y Coordinates in the second-level toolbar to specify the exact position of the second text box so that it aligns exactly with the first text box (either vertically or horizontally).
If you wish to move a text box from left to right or right to left (horizontal), you can adjust the X position. If you wish to move an item up or down (vertical), you can adjust the Y position.