There are a couple ways to display a non-linear chart such as Tick, Volume, Range, Renko, Point and Figure, and Reversal.
The first method is to bring up your Chart Settings by double-clicking the chart background, now select the Bar Settings tab. Here you are able to select the Bar Size drop down menu for your desired non-linear bar size and then you are able to set the interval below.
The second method is to right-click the chart background and select one of the quick bar size options.