Editing the Components?

Hello, I am trying to learn the Pier setup. I am having a hard time finding how to edit the components that are in the default Pier setup. For example. In the default Pier install it says Pier in the Header. How do I grab the header to change that? I've toggled halos, inspected objects, etc. but have apparently missed where I can edit its contents and not its ComponentClass. Now I see that if I go to Navigation and go to Environment and do 'Edit' that I have a contents box with the html. I can edit some of the stuff there. But not the header. I know I am missing something. Any help in understanding this is greatly appreciated. Also, is there any level of undo or persistence of these objects when edited? Say I decide to change the 'Environment' html. But I decide I liked it better before. I do not see anything like that. Is there anything like that in the framework machinery? Any wisdom greatly appreciated. Thanks. Jimmie