XCode4 hotkeys

Edit
Expand/Collapse : Option + Command + Arrow Left/Right
Block Comment : Command + /

Build
Run : Command + R
Clean : Shift + Command + K

Debug
Step Over : F6
Step Into : F7
Step Out : F8
Stop : Command + .
Pause : Control + Command + Y
Continue Command Execution : Control + Command + Y
Add Breakpoint : Command + \

Window
Show Debug Area (아래쪽 창 열기/닫기) : Command + Shift + Y
Activate Console : Command + Shift + C (View > Debug Area > Activate Console)
Shift + Command + J : Reveal in Project Navigator
Command + 0 : Show/Hide Project Navigator
Command + 1~7 : Project Navigator 의 tab 변경
Command + T : New Tab

레퍼런스 : “Continue program execution” keyboard shortcut – Xcode 4