Selection.ExtendMode (Word)

True if Extend mode is active.

When Extend mode is active, the Extend argument of the following methods is True by default: EndKey, HomeKey, MoveDown, MoveLeft, MoveRight, and MoveUp. Also, the letters "EXT" appear on the status bar. This property can only be set during run time; attempts to set it in Immediate mode are ignored. The Extend arguments of the EndOf and StartOf methods are not affected by this property.

With Selection 
 .MoveUp Unit:=wdParagraph 
 .ExtendMode = True 
 .MoveDown Unit:=wdParagraph 
 .MoveRight Unit:=wdSentence, Count:=2 
End With