I've created CPTs using Types in the past, and I've built custom templates, but finding the method for adding a field to an existing Woothemes CPT is frustrating. I'm struggling to find the correct code to either hook or just straight modify the php? Thoughts?
You can easily add meta box using this plugin http://wordpress.org/extend/plugins/advanced-custom-fields/
The UI of this plugin is not confusing and I also personally use it.