AutoGrowMax
The AutoGrowMax option will only work if the 'autogrow' is added to the config file. See how to add it in FCKeditor 2.x/Developers Guide/Configuration/Configuration Options/Plugins.Add. To learn about the plugin and the "AutoGrowMax" option read this example:
Lets say that the plugin has been added to the config file and we are running our FCKeditor. While typing there is a moment when the content is bigger than the space of the "Editing Area" (than a scrollbar appears on the right). The "autogrow" plugin allows to expand the "Editing Area" so it will fit the content you have placed inside it. The "AutoGrowMax" option sets the maximum height which the "Editing Area" can expand to. Code:
FCKConfig.AutoGrowMax = 400 ;