Debugging QFC and QF_Renderer_ITStatic

Hello, I am working on creating a multi-page, wizard-type form, using QuickForm_Controller and QuickForm_Renderer_ITStatic. I'm running into some kind of non-obvious problems, and what I'm wondering is, how can I find a list of all the valid {placeholder} symbols that are being created by QFC, so that I know what placeholders to place where? I know that, generally, if you add an element to a page, that creates a symbol pagename_element_name_html that will actually create the element. But there are also page-specific placeholders, like the pagename_attributes that is supposed to be embedded in the <form > tag. What other non-element placeholders are there? Jeff Schmidt