Thank you for your answer.
I edited the originals pages templates, because creating new templates is not a good solution for my users. They are totally newbies, and their is already to much options for them in the Download Manager :).
A future upgrade that might be great, is to be able to choose the default templates for each type of documents/datas in the plugin options. Then we would be able to create and translate the templates without touching the original templates (which I’m always afraid to override with an update of the plugin).
Thank you again.