Jude_23
I understand your concern about the new file creation. That can be a real problem. I've done a bit more experimenting and have managed to get it to switch to the old comments style without opening it in a new document. Now when you run the macro (or click the button tied to the macro), the old comments come back on while staying in the original document. Give it a try and see if this works for you. Here's the new macro...
Sub NewDocumentWithOldComments()
'
' This macro re-enables the old comments view by comparing the open document to itself.
' Since its comparing itself to itself, no changes will be made, the same document will stay open (no new document needing saving)
' and the old comments will reappear.
'
Application.MergeDocuments OriginalDocument:=ActiveDocument, _
RevisedDocument:=ActiveDocument, Destination:= _
wdCompareDestinationOriginal, Granularity:=wdGranularityWordLevel, _
CompareFormatting:=True, CompareCaseChanges:=True, CompareWhitespace:= _
True, CompareTables:=True, CompareHeaders:=True, CompareFootnotes:=True, _
CompareTextboxes:=True, CompareFields:=True, CompareComments:=True, _
CompareMoves:=True, OriginalAuthor:="Author", RevisedAuthor:="Author", _
FormatFrom:=wdMergeFormatFromPrompt
End Sub