D Cartwright

This plugin provides neat chatrooms into BuddyPress groups. Each Group admin can enable a group Chat room, available for all group members to view and post.
The Chat area provides an ajax chat room which displays the most recent messages along with timestamps and usernames. It also has a “who’s online” area which shows other group members viewing the Chat page.
<h4>Features</h4>
<ul>
<li>Who’s Online list of members in the chatroom.</li>
<li>Text Chat: Supports text and links added via the text input box.</li>
<li>Video and other embeds – Videos such as You-tube can be added as an embedded video using the Video button. The same link can be used for other WordPress embedable urls.</li>
<li>Emojis supported: over 1,000 emojis easily inserted into the chat stream with options to load them all or just a subset.</li>
<li>Images: Users with upload_files capability can add images from the media directory/upload into the chat stream.</li>
<li>Images Lightbox: Supports WP Featherlight lightbox, if you install this plugin then images loaded into chat will open in a lightbox.</li>
<li>Activity threading: chat conversations can be collected and posted to the activity stream.</li>
<li>Moderation: Group admin and moderators can delete chat messages.</li>
<li>Theming: Chat message box colours can be set by Group Admin</li>
<li>Auto-hide of chat messages after up to 30 days.</li>
<li>Auto-deletion of chat messages after up to 30 days.</li>
</ul>
Chat messages support links, embeded video is supported an it’s possible to call in another site member to the chat using @mentions.
I’ve introduced rudimentary threads support. The behavior is that a new message, posted more then 15 minutes after the last message will be marked as a new thread. All messages posted after that initial message will be regarded as part of that thread. After 15 minutes the thread will be deemed closed and if posting of threads to group activity is enabled then all messages in the thread will be posted in a single activity update. I’m expecting this functionality to change as the plugin develops.
Currently the chat supports text chat and the sharing of links. I’m interested in adding further features but would like to see some user requests for the same.
This plugin was originally created by David Cartwright and has been forked by Venutius. It includes an emoji set which was sourced from WP Emoji One by Monchito.net.
This plugin runs from your own server, no chat data leaves your site. This has has the benefit of minimizing your exposure regarding user privacy and GDPR, however chat will be as responsive as your server and can be laggy because of this. User conversations are stored for one month then deleted.

BuddyPress Group Chatroom

This plugin provides neat chatrooms into BuddyPress groups. Each Group admin can enable a group Chat room, available for all group members to view and …

hardlyneutral

This plugin is built to display BuddyPress groups on the new user registration page. Groups can be displayed as:
<ul>
<li>a list of checkboxes</li>
<li>a list of checkboxes in a scrollable container</li>
<li>a list of radio buttons</li>
</ul>
New users will automatically join any of the groups selected during the registration process.
Options are available in the admin area to configure the title of the groups list on the registration page, the 
description of the groups list, whether private groups are visible to new users, the order in which groups are 
displayed, and how many groups will be visible.
<h3>Custom Styles</h3>
This plugin includes specific CSS for changing the way content is displayed. The default CSS will place the group after the “Profile Details” section and before the “Complete Sign Up” button on the register page. You can view <code>includes/styles.css</code> in this plugin directory to see how to target each element.
Here is a list of the current selectors used in <code>includes/styles.css</code>.
Groups section:
<pre><code>#registration-groups-section {
 float: right;
 width: 48%;
}
</code></pre>
Checkboxes:
<pre><code>.reg_groups_group_checkbox {
 margin: 0 5px 0 0;
}
</code></pre>
Form labels:
<pre><code>#buddypress .standard-form label.reg_groups_group_label,
.reg_groups_group_label {
 display: inline;
 font-weight: normal;
}
</code></pre>
Groups section – responsive:
<pre><code>@media only screen and (max-width: 480px) {
 #registration-groups-section {
 float: none;
 width: 100%;
 }
}
</code></pre>
List items:
<pre><code>.reg_groups_item {
 list-style: none;
}
</code></pre>
No groups message:
<pre><code>.reg_groups_none {
 font-style: italic;
 color: gray;
}
</code></pre>
Multiselect:
<pre><code>.reg_groups_list_multiselect {
 height: 8em;
 border: 1px solid #ccc;
 background: #fafafa;
 padding: 6px;
 overflow: auto;
}
</code></pre>

BuddyPress Registration Groups

Allows a new BuddyPress user to select groups to join during the registration process.

BuddyPress Group Chatroom vs BuddyPress Registration Groups