The side bar, next to the code line numbers, that allows expansion/collapsing of brace/brackets {} is no longer showing in Xcode. I am trying to figure out how to get it back.
Go to Xcode Preferences/Text Editing and check the "Code Folding Ribbon" box.
EDIT: As of Version 9.0.1 (9A1004), this feature has been removed from Xcode 9. I am looking for a new editor because I use this feature so much, and I cannot believe they actually removed it in Xcode 9.