MQTT-DataSource - Transform - Extract fields

[miguelyogui]

Hello. I need to clarify some doubts. Can you help me?

I'm using Data Source MQQT, I subscribed my topic.

I receive the measurement data, in JSON format,

I assign a transformation with Extract Fields Source Variable - Format Key + value pairs, and I want to apply the value inside a Gauge,

but I am not able to separate all the variables and treat them one at a time ...

Make a Gauge only with the variable PA, make a Gauge only with the variable PB, PC, PT etc...