Example of Multiple Loader Setup

Glass.Sitecore.Mapper.cs

_context = new Context(
                config,
                new MyModuleConfig(),
                new MyModuleConfig2());

//this class is in another assembly

public class MyModuleConfig : IModuleConfiguration{

   //This is implemented from the interface
   public IConfigurationLoader GetConfig(){
              AttributeConfigurationLoader loader = new AttributeConfigurationLoader(
                new string[] { "MyModule.Domains, MyModule" }
              );
   }
}