custom-build-step

I am developing an iPhone app and there will be a Full as well as a Lite version of that app. In order get both bundles from the same source code and xcode project I added another target to the xcode project. Now, I want to have the Lite target copy only a subset of the resource files to the bundle. But, xcode won't simply let me delete individual files from the "Copy Files to Bundle" build step, since I imported all my resources as folder references. I need this in order to maintain a directory structure in the resources directory. How do I solve this problem? Any suggestions or ideas are

Using Visual Studio 2008, When I add to a C++ project a file that is not .c/.cpp/.h/.rc or anything the IDE doesn't recognize a dialog pops up which asks me if I want to create a custom build step rule for this kind of files. Does anybody know how to get to this dialog without adding a file? I can't seem to be able to find in any of the menus. Edit: I know all about the .rules file. What I'm talking about is a GUI Dialog from within Visual Studio 2008 which allows you to create and edit these .rules files. This is the dialog I mentioned which pops up when you add a file with an unknown