Open UART interface, controlling RTS/CTS?



Hardware: Q2687
Firmware: R74

Need help, using the open UART interface.
I would like to control the state of the output control signal CT106/CTS2.
When reading the ADL user guide, I believe it is possible, by setting correct parameters in sUartSettings_t and others.
But setting correct parameters is the problem.

I’m connecting a RS485 driver to UART2 and I need to control the receive/transmit with the CTS signal.
Cannot use GPIO as it is already designed the other way!