TradeStation Help
You can choose the type of scaling used for displaying price information. You can choose Date Range on Screen, Entire Date Range, or designate your own price scaling values, Fixed. See About Scaling in Price Charts for a detailed explanation of scaling and your options. You can also specify if you want to center the y-axis based on the last bar's closing price.
When you are working in a multi-data chart, using the Format > Symbol Menu bar sequence produces the Format Symbols window which lists the symbols plotted. Select the symbol you want to edit then click Format to open the Format Symbol [symbol] window.
You can use the Format menu to change your chart from Semi-Log to Linear scaling as well as center the price scale to the last price on the chart. You can also quickly toggle on and off the display of the right and left price axes, change the chart to a different style, including a Percent Change chart, add space to the right and display a grid.