/** View Menu Action */
 @Action
 public void viewPanWest() {
   zh.pan(tactics, -0.2, 0, FAST);
 }
 /** View Menu Action */
 @Action
 public void viewPanNorth() {
   zh.pan(tactics, 0, -0.2, FAST);
 }
 /** View Menu Action */
 @Action
 public void viewPanSouth() {
   zh.pan(tactics, 0, 0.2, FAST);
 }
 /** View Menu Action */
 @Action
 public void viewPanEast() {
   zh.pan(tactics, 0.2, 0, FAST);
 }