---------- NOT FOUND or NOT WORKING =====> switch the messenger mode
( https://goo.gl/SJUrfg )
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* old message
* search message text
* view/browse conversation/messages history.
* beginning of a chat's history
* bookmark message content.

This app I've made as gift for my girl friend because she wanna read again our conversation.
Hope it be useful.
Have a good day :)