My strategy is based on concept of volume as name suggests. In first version I have used OBV and its base indicator is volume. When OBV shows rising or falling interest strategy opens a buy or sell trade. In second version I used Volume and when buying or selling occurs with heavy volumes strategy executes buy or sell trade. As in indicator block I cannot ad red volume bar or green volume bar to identify buying or selling I have added historical candle to know how previous candle closed.