Transparent Transmission mode in BC68 module

HI I am trying to establish Transparent Transmission mode in MQTT using BC68 module. How can I configure transaprent mode in BC68?

I do not understand the transparent mode you refer to. Please refer to the attached document for MQTT application
Quectel_BC68-GV&BC95-GV_MQTT_Application_Note_V1.0.pdf (293.2 KB)

AT command like QIMODE to configure transparent mode in BC68.

No, I wonder where did you learn about QIMODE?