Open the Insert Symbol dialog. If the text in your document isn't already
TNR (which will then be "(normal text)" in the dialog), change the font to
TNR. Do you see a character at 0304? I don't. I see only 0300, 0301, 0303,
0309, and 0323 in the Combining Diacritical Marks character subset. I
thought it might be possible to add the character in TNR text by typing 0304
and pressing Alt+X (assuming the character would be supplied by another
font), but in fact I just get a square. A fuller character set (including
the macron and breve) is available in Calibri and Cambria, which you may
well be using in Word 2007.
The version of TNR I'm using is 3.00 (modified October 18, 2002 or August 4,
2004, depending on which tab of the Font Properties you believe); the
version history at
http://www.microsoft.com/typography/fonts/family.aspx?FID=9 goes only up to
2.55 (Windows 95), which isn't very helpful. The version on my Windows 7
laptop is v. 5.05, which does include the characters you mention; I guess I
need to copy that version to my XP machine!
--
Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
http://word.mvps.org
Of course it is -- I've been using it at least since XP, so it was in
the font at least that far back. (I don't know when Windows first
became Unicode-aware; Mac wasn't until OS X, and I was unable to
upgrade to OS X.)