Select the Window with the text annotation that you want to move.
Under the Drawing pull-down, select Text Annotations, Move. All text annotations in the Window are now selected. This is indicated by the four handles surrounding each text phrase. Also, notice that the cursor is now a four-headed arrow.
Click and drag the text phrase you want to move. Let go of the left mouse button to set the text item in place. You can repeat this process indefinitely until you press [Esc] to exit from Move Text Annotation mode.