Log4E replaces System.out.println, System.out.print, System.err.println, System.err.print and e.printStackTrace statements.
In the Preferences you can choose which logger level should be used.

Options:

• Replace System.out
  If unchecked, the replacement of System.out's will be omitted.
• Replace System.out with logger level
  Choose the level of logger.
• Replace System.err
  If unchecked, the replacement of System.err's will be omitted.
• Replace System.err with logger level
  Choose the level of logger.
• Replace e.printStackTrace()
  If unchecked, the replacement of e.printStackTrace()'s will be omitted.
• Replace e.printStackTrace() with logger level
  This setting is the same as Catch Block settings and is not configurable here.