DefaultPageController.cs

namespace AlloyDemo.Controllers
{
    [TemplateDescriptor(Inherited = true)]
    public class DefaultPageController : PageControllerBase<SitePageData>
    {
        [EditableContentOutputCache]
        public ViewResult Index(SitePageData currentPage)
        {
            var model = CreateModel(currentPage);
            return View($"~/Views/{currentPage.GetOriginalType().Name}/Index.cshtml", model);
        }
        
        ...