Add macro to document, select text, run macro, You can now copy fields codes to clipboard.
Ps. in office 2010 ALT+F9 is used to display fields codes.
Sub StuffFieldCode()
Dim sField As String
Dim sTextCode As String
Dim bSFC As Boolean
Dim MyData As DataObject
Dim sTemp As String
Dim J As Integer
Application.ScreenUpdating = False
If Selection.Fields.Count = 1 Then
bSFC = Selection.Fields.Item(1).ShowCodes
Selection.Fields.Item(1).ShowCodes = True
sField = Selection.Text
sTextCode = ""
For J = 1 To Len(sField)
sTemp = Mid(sField, J, 1)
Select Case sTemp
Case Chr(19)
sTemp = "{"
Case Chr(21)
sTemp = "}"
Case vbCr
sTemp = ""
End Select
sTextCode = sTextCode & sTemp
Next J
Set MyData = New DataObject
MyData.SetText sTextCode
MyData.PutInClipboard
Selection.Fields.Item(1).ShowCodes = bSFC
End If
Application.ScreenUpdating = True
End Sub