I've added a resources directory as a folder reference to the app bundle according to this question. I'd like to exclude some of underlying files, since I don't need them in my app.
The "Delete" context menu item is disabled on every file below the root folder. If I add the files with "Create Groups", they are added flat, without any hierarchy.
Is it possible to remove specific files under a folder reference? Is there another way to add files and keep the hierarchy?