Bolt VM-1010C TTL Macro Flash - Manual (Page 29)

VM-1020 Transceiver Settings and Controls | 29
5. Press the Set [ ] button again to confirm the group A:B settings.
You can change Group C settings according to the instructions in Group Mode above.
To set the wireless channel and ID number, as well as the overall group compensation, see Setting the Wireless
Channel, Setting the Wireless ID, and Global EV Compensation above.
Slave Mode
In this mode, the transceiver acts a slave, and it
receives flash information from the master unit. Use
this mode when you need to wirelessly trigger a
speedlight or camera.
GROUP
：
A CH02
SLAVE 9999
Flash Group Channel
Slave Mode Wireless ID