why can't you get your button wizard on?
here is the code from behind a button wizard Undo button. you can just make a new command button and then make this the click event.
Private Sub cmdUndo_Click()
On Error GoTo Err_cmdUndo_Click
'undoes any changes that have been made
DoCmd.DoMenuItem acFormBar, acEditMenu, acUndo, , acMenuVer70
Exit_cmdUndo_Click:
Exit Sub
Err_cmdUndo_Click:
MsgBox Err.Description
Resume Exit_cmdUndo_Click
End Sub
jennifer