Remote device: Search and add a remote device. Alarm output: Generate alarm output signal manually. Main menu: Go to system main menu interface.Tips:Right click mouse to go back to the previous interface.Figure 4-314.6.4 Preview Display Effect Setup4.6.4.1 Video ColorHere user can set hue, brightness, contrast, saturation, gain, white level, color mode and etc. SeeFigure 4-32.