Set the Arduino IDE preferences to use an external editor, download Notepad++ and add the Arduino specific references as shown in this thread http://arduino.cc/forum/index.php/topic,112662.0.html You will be able to fold/unfold.
Set the Arduino IDE preferences to use an external editor, download Notepad++ and add the Arduino specific references as shown in this thread http://arduino.cc/forum/index.php/topic,112662.0.html You will be able to fold/unfold.