We came across the problem of translating a LabVIEW application into the language of our customer. Not finding a solution in available on LVTN toolkits, we had to develop our own solution. So the Language Support Toolkit was launched and we decided to put it on LVTN as well. Those of you who had the same issue can have a look at the product page https://www.ni.com/en-us/shop/product/language-support-toolkit.html. You can download the trial and see if it fits your needs. And then if you decide to buy it, consider that we have discounted it by 20% till November 30 (https://rafasolutions.com/products/labview-experience/labview-toolkits/4/language-support-toolkit).
Good luck!