We recommend the following JEdit customizations.

Enable Mac OS style menubar in Utilities -> Global Options -> Plugins -> Mac OS Settings

Change the default indentation to four spaces via Utilities -> Global Options -> Editing -> Indent Width and Utilities -> Global Options -> Editing -> Tab Width.

Change the default tab width when printing to four spaces via Utilities -> Global Options -> Printing -> Tab width when printing

Add line numbers by checking Utilities -> Global Options -> Gutter -> Line Numbering

Allow at most 80 characters per line by Utilities -> Global Options -> Editing -> Word wrap -> hard and Utilities -> Global Options -> Editing -> Wrap margin -> 80.

Change the default line separator to Unix via Utilities -> Global Options -> Loading & Saving -> Default Line Separator

Remove the annoying . that marks the end of a line by unchecking Utilities -> Global Options -> Text Area -> End of Line Markers


Utilities
Global options
(turn off) wrap guide

Utilities
Global Options
Editing
(set to zero) wrap margin
Replace tabs with spaces

Utilities
Global Options
Gutter
(turn off) show gutter

plugins
buffer list
enable

utilities
global options
jedit
docking
bufferlist, left