Canucker, After you type in the text box and hit CTRL enter. You see the yellow squares in the corner. Move your mouse over the highlighted corner and hold down the CTRL button, then click and drag the mouse to make the extension. Then click enter with your mouse.
Just click inside the text box after you have hit enter and are done typing....then hold down ctrl while you drag a line pointer to where you want it to go....let me know if you need more help with it.