The view portion is an important concept in charts such as the Graph and Candle charts. You can think of the view portion as a window into the data you have provided to the chart. When you apply a view portion to a chart , all the data that is not contained in it will not be shown. The view portion can be changed in real-time , per frame basis. In the following sections you will learn how to make the most of the view portion in Graph And Chart.
To grasp the concept of view portion , you can watch the following video , notice how chaining the view portion size changes the size of the graph inside the display