Editor window height

See the integration docs per scripting language on FCKeditor's wiki : http://wiki.fckeditor.net/
E.g. for javascript:
After you have created an instance for your FCKeditor, set the height property of that istance.

var oFCKeditor = new FCKeditor( 'FCKeditor1' ) ;
oFCKeditor.Width = 400 ;
oFCKeditor.Create() ;