In this exercise, the employee on line 4 will swap off days with the employee on Line 6. The line 4 employee will work on Monday, 05/14/12 and be off Wednesday, 05/16/12. The line 6 employee will be off on Monday, 05/14/12 and work on Wednesday, 05/16/12.
Click the 0 Hours link on 05/14/12 for the line 4 employee.