You can elect to use the data from the Trades only, from the Asks only, or from the Bids only, by setting the '''Quote Field'''.
Quote Field is set from the '''Format SymbolInstruments''' window:
# Open the '''Format SymbolInstruments''' window.<br><span>{{FormatSymbol}}</span>
# Select the '''Settings''' tab.
# In the '''Chart''' section, in the '''Quote Field''' drop-down list box, select '''Ask''', '''Bid''', or '''Trade''', to use ask, bid, or trade data, respectively.