mirror left and right control curves in rigify

Hello , I am looking solution for this issue from almost 2018,its been 3 year but still not get the proper and easy answer. Hope will get though it :D Ok i am using rigify to rig , As my control curves "WGTS_rig" are not good for me. so i did adjust the one side for all the controller. Lets say i just fixed left side of the character. Now i want to mirror that information to right side. may be we will introduce simple click solution for "WGTS" curves for mirroring.

And also i am not sure if this corner is good for posting "Add ons" demands. so pardon me if i am posting in wrong space,

Thanks in advance and looking forward