Is there a way to add a BPoseView, such as in used in the Open/Save panels, into my own window? I want to use one in a "New Project" dialog box, with extra buttons for making a new folder and creating source files from a template. I know I could customize a BFilePanel, but there will be other stuff in the dialog as well and I think it would be better if I could just embed the BPoseView into my own window, as that is the only thing that it has in common with a BFilePanel. BPoseView is named as if it is a public object, but it seems like the headers for it are missing for 3rd-party apps (they are only in the Tracker Kit subdirectory).