Thanks again, Ed.

I couldn't find anything associated with this on the Publisher website.
But, i found your code that can  relate to this:
"Here's some code I posted almost exactly two years ago to this group:

===
Public WithEvents cbbButton As Office.CommandBarButton

Sub Dummy()
   MsgBox "Dummy"
End Sub

Private Sub cbbButton_Click(ByVal Ctrl As Office.CommandBarButton, _
CancelDefault As Boolean)
   Dummy
End Sub

Private Sub Document_BeforeClose(Cancel As Boolean)
   cbbButton.Delete
End Sub

Private Sub Document_Open()
   Dim cbBar As Office.CommandBar
   On Error Resume Next
   Set cbBar = Publisher.CommandBars("Macros")
   If Err.Number = 0 Then
       'everything is fine
   Else
       Set cbBar = Publisher.CommandBars.Add("Macros")
       Err.Clear
   End If
   Set cbbButton = cbBar.Controls(msoControlButton)
   If Err.Number = 0 Then
       'everything is fine
   Else
       Set cbbButton = cbBar.Controls.Add(msoControlButton)
   End If
   Err.Clear
   'you can insert some code to format the button here
End Sub
==="

But, now I have a well working form with the Submit button. Will it be
possible to give the CommandBarButton the same functionalities as the
existing Submit button?

Thanks