ep_message_all

This etherpad plugin adds a website to the admin backend (/admin/message_to_all) to send a message to all connected users and to all newly connected clients within the next 5 minutes.

You can override the default settings in settings.json:

Option	Description
ep_message_all_default_message	Overwrite the default message
ep_message_all_show_message_time	Overwrite how long a message will be displayed to new users (default: 300000 - 5 minutes)