Hi Pairote,
first of all, let me congratulate you and your team for doing a great job with RVSB and the new last options that you added to RVSB.
But, in my case I have disabled that options until you give us the translation files so we can work on them. It is not good to have a web site with two languages, it doesn't look good.
Any way, I know that you will be working on it and maybe in a very near future we will have that translation option inside each of the new components management.