Track on the specified class-id

Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU)
• DeepStream Version 4.0.0
• JetPack Version (valid for Jetson only)
• TensorRT Version
• NVIDIA GPU Driver Version (valid for GPU only)

Could i specify some class-id which i don’t want need to tracke.
i have detected 10 classes in nvinfer and now i just want to track one class in NvDCF, how can i do ?