Which option is used to customize shortcuts in the Epic navigation menu?

The correct answer is User Preferences because this feature allows users to tailor their navigation experience within Epic to better suit their workflow. By accessing User Preferences, individuals can adjust settings that include the organization and visibility of shortcuts in the navigation menu. This customization ensures that frequently used functions and applications are easily accessible, thereby enhancing efficiency and productivity within the system.

Other options, while useful in their own contexts, do not pertain specifically to customizing the navigation menu shortcuts. Speed buttons are typically used to access specific actions quickly but do not encompass the broader customization options available in User Preferences. SmartPhrases serve a different purpose by providing text shortcuts for documentation, and QuickFilters help to refine searches or lists but do not involve altering the navigation menu. Thus, User Preferences is the specific tool aimed at customizing the user experience related to navigation in Epic.