Yes I have tried with lang tags in description and also in ‘alt’ attribute for any image. This process works correctly but I am trying to find out another solution for a beginner user.
I think to use lang tags is correct for an advanced user, the webmaster or when descriptions are short but I would like to prevent beginner users to write these tags and do the process easily.
I agree with you that this is an important question because is possible that can be a mess have more than one gallery.
Thanks for all