You can choose to enable or disable this feature for new chatrooms on the [channel configuration page](/peertube-plugin-livechat/documentation/user/streamers/channel).
To enable or disable this feature, use the [chat dropdown menu](/peertube-plugin-livechat/documentation/user/viewers), open the "configure" menu.In the form, you will find a "{{% livechat_label livechat_configuration_channel_anonymize_moderation_label %}}" checkbox.
![Screenshot of a chat session. The moderator has open the message menu, and there is a "{{% livechat_label search_occupant_message %}}" button.](/peertube-plugin-livechat/images/message_search.png?classes=shadow,border&height=200px "Message history search")
The search result will also include all messages related to participants who had the same nickname.You can differenciate them by comparing [JID](https://xmpp.org/extensions/xep-0029.html) and [occupant-id](https://xmpp.org/extensions/xep-0421.html).