I use Notepad++ as my default editor, after every simulation the page just refreshes so you need not close error file or any other text file you are reviewing. Very important are the plugin- I use to compare to two files with highlights to see modifications as well. It also allows viewing two files side by side with parallel scrolling. An excellent tool for E+ users. It has many other tools like macro style recording, functions, launch in the browser or other apps, and much more coding plugin to help coders of other programming languages.