I have a 1/2 HP Cratfmans GDO which I installed about six months ago. I want to program my

Universal Clicker (http://www.aaaremotes.com/clicunem.html) to open it. Clicker says it will work with Craftsman GDO but I have a purple learn button my GDO opener andClicker only refences red, yellow ad green ones.

I opened up my Craftsman remote but there are no dip switches that I can mimic.

Can someone point me in the right direction to get a universal remote to work with my Craftsman GDO.

Thanks