Selection.TypeText (Word)

Inserts the specified text.

If the ReplaceSelection property is True, the selection is replaced by the specified text. If ReplaceSelection is False, the specified text is inserted before the selection.

TypeText (Text)

Text: The text to be inserted.

If Options.ReplaceSelection = True Then 
 Selection.Collapse Direction:=wdCollapseStart 
 Selection.TypeText Text:="Hello" 
End If