One of the many improvements in the MindManager X5 5.2 Upgrade is the new option for the Notes editing window. In previous versions Notes were edited in a vertical docked pane on the right hand side. In the update there is an option to have the Notes pane docked as a horizontal pane on the bottom of the map window. This is done via Tools>Options>Notes or simply by selecting a Topic with a note, then right clicking on an empty portion of the Notes Pane & changing the Window Position option on the fly-out menu.
The horizontal pane is much easier for editing text especially if it will be exported to a word processor using a normal page format. You see the layout in the Notes Pane much as it will look in the Word export which is useful when adding bulletted lists, paragraph breaks, and indents.