How do I view the HIRO Chart full screen? To view the HIRO Chart full screen, click on the square in the upper right corner, this enables the zoom function. SpotGamma Alpha subscribers can access the SpotGamma HIRO Indicator here. Related articles How do I add symbols to my HIRO watchlist? How do I view the entire list of HIRO symbols (not only my HIRO Watchlist)? What is Put Open Interest? How do I change the chart view in HIRO? How can I use the SpotGamma HIRO to help me trade?