If you want to compare the results of your reservices it can be done be using an Effect analysis. 

 

Go to Analysis sows - Effect analysis - Service - Days before reservice and this will appear on your screen:

 

 

Click on "Edit", shown in the red box on the picture above. Go t the tab "Service" and double-click on "Services at same litter": 

 

 

This will now be added to the box on the left side. If you want to remove some of these, ex "Service.Employee.Initial" you click on this and it will be shown in blue and hereafter you click on "Remove". If you want another order of these you can use "Move up" and "Move down". Press "Ok" when you are done.

 

If you want the columns to be shown vertically you must open the layout setup, go to the tab "Behaviour appearance" and put a checkmark in "Show columns vertically":