Question) Can I use zigbee and UART at the same time?

Question

Hello, this is the person who asked about " devzone.nordicsemi.com/.../question-serial-output-uart ". First of all, thank you very much for your sincere reply. 
 The reason why I want to use 2 UARTs is because I want to see the 'Data' which is received by connecting 2 boards to UART communication and 1 board to PC. 
 Now that the two boards and the PC (UART) communication have been resolved, I am inquiring about what I am trying to do with this method. 
 Please look at the picture below.

Used three boards (nrf52840) as shown in the figure above. (End Device, Coordinator (zb_cli_agent),Serial_UARTE) 
 And each one. We used zigbee_right( zr ), zigbee_cli_agent( cli ), and serial_uartes( su ) sdk. 
 
 'zr' and 'cli' are. I connected by looking at 
 https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_tz_v4.0.0%2Fzigbee_multi_sensor_example.html 
 and 
 https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_tz_v4.1.0%2Fzigbee_example_cli_agent.html 
 
 and I saw that the value was coming in. 
 
 And I wanted to communicate UART with Cli and su, so I porting the UART definitions and functions in su. 
 
 But, if serial is initialed, command window does not appear. 
 int main(void)
{
 ret_code_t ret;
 zb_ieee_addr_t ieee_addr;
 
/* UART */
 int i;
 char ReadData[100];
/* END UART */

 /* Intiialise the leds */
 bsp_board_init(BSP_INIT_LEDS);
 bsp_board_leds_off();

 /* Initialize loging system and GPIOs. */
 nrf_drv_power_init(NULL);
 log_init();
 
#if defined(APP_USBD_ENABLED) && APP_USBD_ENABLED
 ret = nrf_drv_clock_init();
 APP_ERROR_CHECK(ret);
 nrf_drv_clock_lfclk_request(NULL);
#endif
 
 ret = app_timer_init();
 APP_ERROR_CHECK(ret);

 
/* UART */ // Serial_init

 ret = nrf_serial_init(&serial0_uarte, &m_uarte0_drv_config, &serial0_config);
 APP_ERROR_CHECK(ret);

 ret = nrf_serial_init(&serial1_uarte, &m_uarte1_drv_config, &serial1_config);
 APP_ERROR_CHECK(ret);

/* END UART */


 /* Initialize the Zigbee CLI subsystem */
 zb_cli_init(ZIGBEE_CLI_ENDPOINT);

 /* Set Zigbee stack logging level and traffic dump subsystem. */
 ZB_SET_TRACE_LEVEL(ZIGBEE_TRACE_LEVEL);
 ZB_SET_TRACE_MASK(ZIGBEE_TRACE_MASK);
 ZB_SET_TRAF_DUMP_OFF();

 /* Initialize Zigbee stack. */
 ZB_INIT("cli_agent_router");

 /* Set device address to the value read from FICR registers. */
 zb_osif_get_ieee_eui64(ieee_addr);
 zb_set_long_address(ieee_addr);

 zb_set_bdb_primary_channel_set(IEEE_CHANNEL_MASK);
 zigbee_erase_persistent_storage(ERASE_PERSISTENT_CONFIG);

 /* Register CLI Agent device context (endpoints). */
 ZB_AF_REGISTER_DEVICE_CTX(&cli_agent_ctx);

 /* Set the endpoint receive hook */
 ZB_AF_SET_ENDPOINT_HANDLER(ZIGBEE_CLI_ENDPOINT, cli_agent_ep_handler);

 /* Start Zigbee CLI subsystem. */
 zb_cli_start();

Can I use zigbee and UART at the same time? If so, I would appreciate it if you could tell me how. 
 And can the Coordinator receive a message like "Hello Nordic zigbee" from the End Device without zb_light as shown in the figure above? 
 Thank you for reading the long article.