Finding Editor Help
Step-by-step instructions for performing common source editor tasks are available directly in Xcode. Control-click anywhere in the source editor to see a short list of the most common operations. Choose Show All Help Topics to see all help articles for the source editor. Select a task, and a help article appears in the Xcode documentation viewer window.
Xcode help articles are available from shortcut menus throughout Xcode. Control-click in any of the main user interface areas to see a list of help articles available for that area.