Alexandre Froger

This plugin merges comments lists for all the languages. When active, each post displays all the related comments, including Custom Post types. 
It is compatible with WooCommerce product reviews – it re-calculates the product rating average taking into account the reviews for all languages.

Unify WPML Comments

Unify WPML Comments displays all the comments of a given post for all active languages.

CloverValleyApps

WPML.org has an excellent plugin to make WordPress sites multilingual. As well as powerful tools to manage the translation and translators.
Reusable Text Blocks makes centralizing reusable text quick and easy. 
https://wordpress.org/plugins/reusable-text-blocks/
WPML doesnâ€™t work Reusable Text Blocks and other similar type plugins, resulting in messy workarounds.
The solution was suggested on this thread: 
http://wpml.org/forums/topic/conditional-language-shortcode/
And so WPML Shortcode Translator was created so you can use power of WPML anywhere. For example:
[wpml_language language=”enâ€]Hello[/wpml_language] 
[wpml_language language=â€œjaâ€]ã“ã‚“ã«ã¡ã¯[/wpml_language]
Enjoy.

WPML Shortcode Translator

WPML.org plugin users now can use language detection shortcode anywhere, e.g. text blocks.

Unify WPML Comments vs WPML Shortcode Translator