I am writing a new module using the Christoc Templates for DNN 7 CE.  I wanted to have some default Portal Settings for my extension, so that when somebody sets their Module instance scope settings, there will be default values.  I was able to add a new PortalSettingsBase class that implements PortalController.GetPortalSetting and PortalController.UpdatePortalSetting.  I was then able to update my ModuleBase class to inherit my new class, and return the Portal Setting when the Module Setting was not yet defined. 

But, now I am stuck.  How do I update my Site | Extensions | MyModule | Edit Settings page to add controls to update this portal settings.  I mean I can create an ASCX to read them in, and save them (But what method would I override to hook into the Update Module Settings button?), but how do I link that in with the aforementioned page? Is this something I set in the DNN manifest.  There seems to be little to no info on this.