ZMODO ZP-KC1H04-P 4 Channel 720P PoE NVR System - Zviewer iOS User Manual - Manual (Page 13)

Zviewer for iOS 1.0 User Manual
Channel 1 After switch
2.6 Switching Display Modes
1) Double tap the video window to switch between single channel and four channel videos;
2) To switch between Portrait and Landscape modes, orient your phone horizontally or
vertically (See Portrait, Landscape).