I'd like to request that "Find" be added to the right click list when in the editor. If I'm just browsing through code it would be helpful to just highlight an item, right click to get to find, and search away without using the keyboard.
Thanks
May I recommend the use of an external editor instead of the Arduino IDE. I use Geany and just use the IDE for compiling and uploading.
...R
IMHO this is indeed a useful thing... I have been working on my own fork for a little while: the ide has a 'quick access' field on each editor (i proposed it as 4077).
QA can be accessed with META-3 (like in eclipse). If you have something selected, QA will do the same as if you typed VAR or FUNC (for variables and functions) and then try to find your selection in there. If there is a match, then you can press enter and open the reference for the library when this came from (at the moment i cannot be more precise because the doc online doc does not contain Jump points for that can be easily referenced... But who knows... maybe "Arduino Create" will do that too.
As time passes i think that i will have to maintain my fork outside of the core team, but who knows.
Yes federico, it is real code. 
I second what Robin2 said. I use NPP (Notepad ++). It has the SourceCookifier plugin that does what you want and a lot more.
I use Sublime Text 3 with Arduino-Plugin (called Stino).