Jump to the documentation search field in Xcode 4 using AppleScript.

Search Xcode Documentation.applescript

#!/usr/bin/osascript

-- Jump to the documentation search field in Xcode 4's Organizer
-- To use, make sure "Enable access for assistive devices" is enabled in the Universal Access pref pane

tell application "System Events"
	tell process "Xcode"
		-- Activate Xcode if necessary
		set frontmost to true
		
		-- Open the Organizer
		keystroke "2" using {shift down, command down}
		set organizer to window 1
		
		-- Select the Documentation panel if it's not already selected
		if the title of organizer is not "Organizer - Documentation" then
			click button "Documentation" of tool bar 1 of organizer
			delay 0.1
			set organizer to window 1
		end if
		
		-- Move focus to the search field
		set searchField to text field 1 of splitter group 1 of organizer
		set searchField's focused to true
	end tell
end tell

To execute this script using a keyboard shortcut:

1. Make sure the script is executable: chmod +x "Search Xcode Documentation.applescript"
2. Go to the Behaviors tab in Xcode's Preferences
3. Add a new behavior and click on the faint keyboard shortcut indicator on the right-hand side of its name in the sidebar to add a shortcut (or use the Key Bindings tab)
4. Scroll down to the "Run" checkbox, check it, and use the pull-down menu to select the script file