- Enable the Maplex Label Engine.
- Click the Label Manager button on the Labeling toolbar.
- Check the check box next to the layer you want to label.
- Choose a label class under the layer.
- Click the Properties button.
- Click the Label Position tab.
- Click the Orientation button.
- Check the Align horizontal labels to graticule check box.
If the data is not in projected coordinates, the labels will not align. They will remain in their original position.
- Click the Graticule alignment type drop-down arrow and choose a graticule alignment type.
- Click OK to close all dialog boxes.