S4

The S4 (Shell, Settings, Search, Shutdown) is a powerful toolset of ACOS native applications designed to unify crucial functions of the system in an easily accessible way.

History
The S4 was originally refered to as the "4 buttons 4 everything".

Functionality and behavior
All the buttons have very similar controls:

Left mouse click
will open up an overlay box of the application, allowing the use without minimizing the Card the user is working on/with.

Right mouse click
will open up a new Card (typically a FloatingCard in maximized state) of the application, showing more options and information. A typical example is the Settings application, which opened in a FloatingCard will not only show the settings for the currently selected application, but also for the whole machine, UI, Desktop etc.

Shell
WIP

Settings
WIP

Search
WIP

Shutdown
WIP