Creating a structure definition
If you wish to create your own custom structure definition, simply choose "New Definition" from the Definition menu, and a new document will be created with a single basic definition ready for you to edit. When you've performed your edits and wish to save, the file will be saved by default in ~/Library/Application Support/Developer/Shared/Xcode/Plug-ins. This way, they will automatically be loaded and usable by PlistEdit Pro at launch time.