Hey Anand,
Currently, the Saitek X56 to my knowledge doesn’t support changing LED’s and doesn’t have an MFD display like the Saitek X52 Pro so my plugin wouldn’t unfortunately help 
If what you mean is a way to use a Joystick/Throttle, that support was added by Epic a while back. I still myself use my custom Joystick plugin and haven’t yet switched over to the one provided by Epic or done a comparison between the two to see if there is a major difference. My actual HOTAS plugin I developed back when UE4 came out just interfaces with a Joystick/Throttle specifically but the one included by Epic has support for all DirectX Input devices. If there is any key functionality not accessible in the current plugin in UE4, let me know and I’ll see if it’s something I already have support for. Best of luck!