esparxlabs

Esparx Chat Popup is a lightweight and easy-to-use plugin that allows you to add a Chat chat button to your website. It enables visitors to quickly get in touch with you via Chat in just one click.
Features: 
– Simple integration of a Chat chat popup. 
– Customizable button text and position. 
– Mobile-friendly design. 
– No coding required.
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This plugin does not store any user data or set cookies. It simply links users to Chat with prefilled messages.

Esparx Chat Popup

Adds a customizable Chat chat popup button to your website, allowing users to contact you directly.

ElbowRobo

This plugin is for BuddyPress, it adds a dashboard menu and a tab in the messages section. Once you navigate into the messages section and click the “Mass Messaging” tab you have access to all the options which you chose in the dashboard.
Including mass messaging to:
<ul>
<li>Members</li>
<li>Members of Groups</li>
<li>Members of Blogs (Sites)</li>
</ul>
And:
<ul>
<li>Select all buttons to allow mass messaging to all members easily.</li>
</ul>
In this page you also see ‘subject’ and ‘description’ just like on the Buddypress compose page.

Mass Messaging in BuddyPress

This works great for what I need, thanks a lot!

Great plugin

Ever wanted to send a message to many people at once? Now you can, introducing - Mass Messaging.

Esparx Chat Popup vs Mass Messaging in BuddyPress