Hi,
In SQL Dev 3.2.20 under Tools -> Preferences -> Code Editor -> Display there are following options "Show Visible Right Margin", "Right Margin Column", "Right Margin Color".
In EA1 there is no such a preference "Right Margin Column". Instead of that there is text "Margin Column is set via Code Style: Line Wrapping Width". Where can I find that "Code Style: Line Wrapping Width"?