In Xcode3.x I could change settings in the com.apple.Xcode.plist file. More specifically, I would tweak the settings in the XCCodeSenseFormattingOptions dictionary as per this documentation e.g. changing the inExpressionSpacing. In Xcode 4, altering these settings seems to have no effect. I've Googled around a bit and have found other people with similar problems, but no solutions. Has anyone figured out how to tweak the default spacing behavior in Xcode 4?