Problem with an ASROCK Dual-Sata board

[AFK_Matrix]

Ok I am building a computer for a friend and have an ASROCK Dual-SATA board and an Antec Sonata version 1 case. Basically the Power LED from the case has 3 holes but the motherboard header only has 2 pins. I have found what to do on the ASROCK site here:

http://www.asrock.com/support/faq.asp?Model=General

Its the 14th answer from the top.

But how do I change the position of the cable? Do I use a pin to detach the cable or is there another way of removing the cable?

 

[AFK_Matrix]

Thanks for the suggestions. Did it last night and all i did is use a very small screw drive to lift the little plastic strip on the back so the metal pin slid out. Was very easy to do.