Install the plugin: Search for the plugin in the plugin list and install it in your application.
Add "User Connector" element: You need to place this element on all pages, where you need to track actions and display notifications.

Add users to the group that will receive notifications: Create a workflow with "Join room" action, for example, on page load. This way the users will be added to the group that will receive the notifications. Fill the field "Room Name" with the name that will refer to the group of users you'll be notifying.

Add message transmitter that will capture the notifications: Add "Message Transmitter" element to the pages where you'll be displaying the notifications, and specify the room name - the transmitter will be receiving the messages only for the room specified.

Set up the notification sending: Upon particular trigger, call "Send a message" action, passing the room name and message in the fields of the action.

Display the notification: Configure the notification to your preference. For example, you can create a workflow to trigger when Message Transmitter's value changed, and display Message Transmitter's value in an alert.