That depends on what you mean by quick and you won't be able to change the parameter descriptions in the parameter table. However for your UI I have seen samples that reference the parameter names to an array that is keyed to a single parameter for the selection of a language. That way all your UI text can change with the selection of a language parameter.
Is that the type of thing you are looking for? I would have to dig around to see the sample with that functionality as I don't typically use it writing GDL for myself. But the concept is fairly simple.
Erich
AC 19 6006 & AC 20
Mac OS 10.11.5
15" Retina MacBook Pro 2.6
27" iMac Retina 5K