Social Networks
Using Jamroom
You can use the form designer:
Docs: "Using the Form Designer"
https://www.jamroom.net/the-jamroom-network/documentation/getting-started/1275/using-the-form-designer
To add any fields you want to the profile update page, then you can display them in the users profile.
If you only want to show some for a specific language, then you get the variable for the language and use an IF conditional
Docs: "Template Blocks"
https://www.jamroom.net/the-jamroom-network/documentation/development/3126/template-blocks
on the language variable. You can understand what variables are available to you in any template by dropping a {debug} into a location where you are thinking about showing whatever the user has input in the form.
Docs: "{debug}"
https://www.jamroom.net/the-jamroom-network/documentation/development/1477/debug
It will probably look something like:
{if $_user.user_language == 'ja-JP'}
{$_profile.profile_facebook_japanese}
{elseif $_user.user_language == 'fr-FR'}
{$_profile.profile_facebook_french}
{else}
{$_profile.profile_facebook_english}
{/if}