Previously, when I was viewing the source code files using the Xcode file browser (located on the left), clicking on the source file would open it in the right window.
I must have accidentally changed some settings that stop this behavior - now one click on any file does nothing. I would really like to return to the old file open behavior.
Any ideas? This kind of behavior is driving me crazy. To open the source file, I have to double-click and open it in a separate window.
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