WhatsApp beta for Android is all set to bring a private reply feature. The feature is already available however the new feature just seems to be a minor enhancement. With this feature, users can send a private message from within a group message.
This feature will become useful when users in a group want to send private reply to a particular message only to a particular sender. With this feature, you can select a particular message within WhatsApp group and then tap on the three dots at the top right corner in order to see the reply privately option.
The feature is similar to the reply message feature however it is enabled within the group.
How to Use WhatsApp's Private Reply Feature
Firstly, select the message of the sender wherein you which to reply. After that tap on the three dots on the top right corner.
After you wish to reply privately the highlighted message will open in the form of a thread in the chat window of the sender.
The version as of now is available only with 2.18.335 version of WhatsApp. The feature is said to be minor however is said to have a major bug.