Zone Editor
Draw polygons on a snapshot. Click to add points, double-click to finish, then choose a type.
Editing:
global zones.json
Channel
Empty channel = global zones.json (used by single-cam & playback). Type a channel number to edit that camera's zones (used by multi-cam grid).
Channel
Snapshot source for drawing:
Zones
Canvas
Load a snapshot, then click "Add New Zone".