LAUNCHXL-CC1352R1: How to use RAM retention variable

Part Number: LAUNCHXL-CC1352R1
Other Parts Discussed in Thread: CC1352R, SYSCONFIG

Tool/software:

Could you please provide the step-by-step procedure for using RAM retention variables in a CC1352 microcontroller-based RTOS application?

My goal is to store certain data in RAM so that it persists until a hard reset occurs. I would like to avoid writing to flash memory frequently and instead retain this information in RAM.

It is very simple and straight forward in MSP430 MCU. 

It will be great if you share some sample application to evaluate the RAM Retention feature.