All study Parameters menus enable you to set default or custom parameters. Default parameters apply globally. If you toggle a parameter menu to Default, the parameters you set will apply to all windows in which you display the study. In other words, if you have several pages with charts and RSI studies and you change the default parameters of the RSI on one of these pages, all pages containing RSI studies will be displayed with the new default parameters. By default, a parameter menu is displayed with Custom toggled. Consequently, the parameters you set apply only to the study in the active chart or split window. Using custom parameters, you can set unique study parameters for one study window, and these parameters will not affect the default parameters. This means you can have an RSI with 3 periods on one page and an RSI with 6 periods on another. Parameters menus are like any other menu. Using the keyboard, you move the highlight with the arrow keys and press Default and Custom Parameters