Navigation
General

It is the menu system that allows the user to enter the relevant screens within the system. It is automatically "hidden" on mobile and narrow screens.
Hide-Show
Users can hide-show NavBar. See Header/Navigation Bar (Hide-Show)
Expand-Collapse
Modules are listed in the NavBar. To access their SubModules, they are expanded by clicking on the name of the relevant module or the arrow to the right. If the module name is pressed again, the module is collapsed.
InMobile
It is automatically "hidden" on mobile and narrow screens.