RokNavMenu provides a feature rich platform for extending the menu, allowing for overrides and plugins for the menu itself, in addition to versatile theming capabilities and so much more.
To find all the parameters for Dropdown Menu & SplitMenu on Paradigm template, such as position, please navigate to:
Extensions → Template Manager → rt_paradigm
Then go to Menu tab, and set the Menu parameters
Descriptions of each template parameter can be seen when you mouseover the label of each option.