This window can display intraday chart of the Hong Kong market.
Click "*" button to change/lock the displayed product.
Right click to change different chart period and select your preference.
Hold the left click, and move from the top-left side to the bottom- right side (as shown by the black dots above) so as to magnify the chart.
If you want the chart to return to its original size, hold the left click and move from bottom-right side to the top-left side.