How to implement mesh proxy node

I'm using nRF5DK PCA10040. And, working on nrf5_SDK_for_Mesh_v0.9.2-Alpha.

I need to enable both of Bluetooth mesh stack and BLE stack.

  1. mesh stack for mesh communication.
  2. BLE stack for communicating with BLE NUS Service enabled device.

I think this means implementing mesh proxy node. Is there any guide for implementing proxy node?

Best Regards