Vertex gruops mirror


I cant find an answer for mirroring vertex groups.
What is the good way of doing it?
It fine as long as I’m doing new model…
But problem is to modify existing ones.
Why topology mirror force me to have same weight groups on both groups?
For now I’am deleting old right side, copying left than renaming and doing topology mirror…
Is there any faster way to mirror not empty groups?

please redirect this post to Technical Support. Somehow after autologin, opera redirected me to latest news from Technical support…