1. Using the Zoom tool , zoom in on the vertical bleed overlap connecting die station 1 to die station 2.
   Notice how the red artwork appears to be overlapping the green artwork.
2. With the Overlap tool  selected, click on the bleed overlap color.
   The bleed overlap becomes slightly darker. 
   
3. Click the bleed overlap color again.
   Notice how the bleed overlap has now been split between the two colors.  
4. To view the difference again, go to the Edit menu and select Undo Modify bleed. Click the Selection tool  to view the original bleed overlap.
5. Return to the Edit menu and select Redo Modify bleed to view the new bleed overlap again.