Use a Custom Plugin Description

The plugin description in the "Add Page" sheet is a standard WebView?. To use your own custom page make the following changes:

Add the following to your .m file

+ (BOOL)hasHTMLDescription 
{ 
 return YES; 
}

Add a folder called "PluginDescription" to your project at this location:

YourPlugin/English.lproj/PluginDescription

Note: Make sure the folder and all it's content get copied to your built plugin.