Yes, i am new with addon development. I'm trying to make a simple "Hello world" page in the controlpanel. I created a new addon, added a new tab in admin navigation, created Route Prefix, added a class in library/XenForo/Route/PrefixAdmin (code) and created a class in library/XenForo/ControllerAdmin. Well, the whole question is, what should i write in the class in ControllerAdmin? Thanks.