I am currently working on a multilingual site on J2.5 using the joomla language engine which filters content based on the language specified for it.

I was wondering how easy would it be to edit the field or tab classes to include a language option.
All would display them regardless of language, or selecting a language from a language list would display them only if the specific language is selected.
While editing I would like to have all of the tabs/fields displayed to allow the users to handle the multilanguage content themselves.

Do you recon it should be something that should be implemented as a mod on the code files, or is it something fit for a plugin?
I am new to CB development, so please bare with my ignorance.

Thanks in advance

Sorry perhaps I needed to be more specific. I need translated field values, not titles etc.
To my knowledge the language plugins handle only titles and other non-user specific content. Am I wrong?

What I want to do is to be able to specify lets say two fields

cb_name_en (english)
cb_name_gr (greek)

and allow the user to store the english and greek versions of his name.

But when another user opens the read only profile, to see only the name corresponding to the selected language. The name field is just an example.

I hope this makes more sense.
Can the language plugins do somethign like that?

Thanks again

I really appreciate the effort, but the content I need to keep multilingual is quite more complex. I should have been more specific.
Imagine that users should be able to keep entire walls of text in both languages