User’s Manual163.1.2 Function KeysThe X4/X8/X16 DVR functional keys on the front panel for normal operationare described as follows.CHANNELx When in both Live and Playback modes, press the CHANNEL key to viewthe corresponding video in full screen. The number of the CHANNEL keyscorresponds to the number of cameras supported by the unit.x When in dome control mode, the key named “1” is used to access theSet/Go preset menu; the key named “2” is used to hide or display thedome setting parameters.DOMEPress the key to enter dome control mode.MODEPress repeatedly to select for wanted main monitor display format. There arethree available view modes: full screen and 4-window (2ͪ 2).SEQ (Sequence)Press to start automatic sequencing of the video coming from the installedcameras.MENUPress the key to call the OSD setup menu.ESCPress to cancel or exit from certain mode or OSD menu without changing thesettings made previously.