The Move Overlay Pan tool (circled) can be used instead of the Horizontal/Vertical placement sliders to adjust the position of the overlay file.
- Select the Move Overlay Pan tool (hand-icon), located below the image field in the Overlay tool. The icon will turn orange once active.
- Click on the overlay in the Viewer and drag the transparency file into an appropriate position while observing the effect.
- Alter the Opacity and Scale sliders or the four resize handles at the corners of the overlay image in the Viewer as needed.