Word applies the style separator formatting to the next paragraph mark after the cursor. The only time Word seems to
insert the style separator is near the end of the file, when the next paragraph mark is the end of the file.
Splitting each of the paragraphs and then rejoining them by pressing Ctrl+Alt+Enter before the one you just entered is a pain. But you can create one and then copy it to the clipboard. After that you can position the cursor and click the clipboard entry and
then apply your heading style.
If you need to do this often, you might like this macro, which inserts a style separator at the cursor position. You'll still have to apply the heading style, though.
As you can see, it does the same thing we would have to do manually. Because your document is already formatted, you may want to put a ' before "Selection.Range.Style = ActiveDocument.Styles
(wdStyleNormal)" to comment it out.
Sub StyleSepandFormat()
'
' StyleSepandFormat Macro
'
'
Selection.TypeParagraph
Selection.MoveLeft Unit:=wdCharacter, Count:=1
Selection.InsertStyleSeparator
Selection.MoveRight Unit:=wdCharacter, Count:=1
Selection.Range.Style = ActiveDocument.Styles(wdStyleNormal)
End Sub
I did not write it. I think one of the MVPs did, but he didn't put his name on it and I forgot to.