System Configurations 23KeypadFigure 4-6Maximize and Restore WindowClick to maximize and restore the window.Single, 4, 9, 16 and Custom SplitClick , , , or respectively, representing single, 4, 9, 16 or custom split.Clearing Video SourceSelect a window.Step 1 Click to select the focused window. Click again and the icon turns into to select all windows within presentoperating screen.Click .Step 2Smart Stream Mode Main stream goes on wall in case of single split. Sub-stream goes on wall in case of 9-split and 16-split. In case of 4-split, with HDMI1 and HDMI2 preview mode, main stream goes on wall. Inother preview modes, sub-stream goes on wall.4.1.4 PTZ ControlPlease refer to "4.5 PTZ Control" for details.4.1.5 Scheme ManagementIf you need to view one video channel frequently, save it as a scheme task for convenientcalling. Maximum 16 tasks can be configured.