Godox V860III-C User Manual page 22

Wireless Multiple Flash Shooting
You can divide the Receiver units, into two or three groups and perform E-TTL II
autoflash while changing the flash ratio (factor). In addition, you can set and shoot with a
different flash mode for each firing group, for up to 4 groups.
Auto Shooting with Two Receiver Groups
Auto Shooting with Three Receiver Groups
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