I've made a custom domain but when I go to enable communities I do not have the option of using my custom domain. What do I need to do in order to use my custom domain (community.example.com ) instead of example.force.com as my domain?

Hi,

I would like to have all new Opportunities start with a default stage value of Stage 1: Initial Interest. I tried a WF rule but was unsuccessful. (below)

I think the best way to do this is with a trigger but i cannot find how to setup a trigger to insert a default value when the opp is created.

Please Help!!