expression.Options
expression Required. An expression that returns an Envelope object.
Remarks
The Options method works only if the document is the main document of an envelope mail merge.
Example
This example checks that the active document is an envelope mail merge main document, and if it is, displays the Envelope Options dialog box.
Sub EnvelopeOptions()
If ThisDocument.MailMerge.MainDocumentType = wdEnvelopes Then
ActiveDocument.Envelope.Options
End If
End Sub