The vast majority of Ovation's features are accessed through the menu system, so it is critical that you learn how to navigate it.
Menus in Ovation are floating 3D planes with text and common user interface elements, including buttons, check-boxes, drop-downs, etc.
Menus can be interacted with by pointing either motion controller at the menu and selecting the available item with the trigger under your index finger. To make selection easier, a laser will appear whenever you are pointing at the menu, and the currently hovered item will brighten and/or scale up in size.
When opened for the first time, various menus in Ovation display helpful dialog windows describing how to best use and navigate that particular menu. Be sure to read them thoroughly.