User blog comment:Kirkburn/Technical Update: October 26, 2015/@comment-1398253-20151027121806/@comment-24757753-20151027131539

> Why doesn't the template editing window word-wrap?

You can press  to open the options pane, and tick the 'Use Wrap Mode' option to enable word-wrapping. This option isn't remembered though, sadly (though you can force it with some personal JS).