12.2.1 How can I Start Debugging My Code? What is the Keyboard Shortcut for Debugging?
Unlike the AVR Studio 4 to build your project, without starting debugging, you may press F7.
If you need to rebuild your project after a change to the source files, press Ctrl+Alt+F7.
To Start debugging - press F5.
To open the Debugging Interface without running directly, press the Debug→Start Debugging and Break menu button or press F11.
To start a line-by-line debugging, press F10 to start an instruction-by-instruction debugging session - press F11.
Press the Debug→Start Without Debugging menu button to run your project without debugging.