Free shipping/upgrade shipping

Hello everyone,



I am having troubles establishing a free shipping rate, while allowing for the customer to select whether or not if they want expedited shipping.



If I set the product to free shipping, all shipping methods are no longer visible.



If I set up a shipping method with a 0.00 absolute value of shipping, its does not appear while the expedited shipping methods appear.



Is there any words of advice?



Does anyone else have something similar?



Thanks in advance,



Jeff

Scratch that, I figured it out.



You have to establish a cost dependency in your shipping method.



Select Location:



Add cost dependency



More than $0.01 with a rate value set to 0 [Absolute]