I am not sure what you mean...when you define a custom layout, just exlcude that menu button. An example of a menu layout we use without the option...
CuteEdit.Template = "Separator,RemoveFormat,Separator,SelectAll,SelectNone,Separator,StyleDropDown,
Separator,FontColor,SetFontColor,HighLight,SetHighLight,Bold,Italic,Underline,Separator,JustifyLeft,JustifyCenter,
JustifyRight,JustifyNone,Separator,Cut,Copy,Paste,Separator,Undo,Redo,Separator,Hr,Char,Separator,
InsertOrderedList,InsertUnorderedList,Indent,Outdent,Separator,Emotion"