ZMODO ZP-KC1H04-P 4 Channel 720P PoE NVR System - Zviewer Android User Manual - Manual (Page 9)

Zviewer for Android 1.0 User Manual
Channel
2.6 Switching Display Modes
1) Double tap the video window to switch between single channel and four channel views;
2) Switch between Portrait and Landscape views by turning your phone horizontally or
vertically (See Portrait, Landscape). When viewing in Landscape mode, all functional
buttons will be hidden.