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5.2.3   Screen Saver 
You can set the screen saver to [Clock], [Colors], or [Landscape] and specify the 
time to start it. You can also preview the screen saver. 
 
 
5.2.4   Swipe up options at the bottom 
You can use this configuration item to set whether swipe up at the bottom of the 
screen evokes System bar or Source menu window. 
  Bottom Sidebar 
  Source Menu 
 
5.2.5   Multi-Window Mode 
Multi-Window Mode allows you to switch the system's window mode to full-
screen mode or multi-window mode to allows you to open multiple apps on the 
foreground at the same time depending on your preferences. This setting 
requires the system restart. 
 If set to Mulit-window mode, multiple windows can operate at the same 
time, which can further increase system load and consume more energy.