Please, go https://www.interactivebrokers.com/en/index.php?f=2493&sid=7300 and vote for this. It's amazing this hasn't been implemented yet.
Bump. (After a search for IB VWAP) I just got an offer from IB to check out their platform for free. Do they really still not have the traditional VWAP indicator implemented yet? They have VWAP, but still just bar to bar as far I can tell. I thought everyone would have a VWAP indicator which covered the entire day by now. TOS has had this figured out for some time.