Add welcome message to rasa-x tester page

How can I add a welcome message to the testers page to be displayed before the user writes anything? It is important that this message is displayed first because I want to explain a series of bot instructions to guest testers.

When you create the link to be shared with the testers, you can enter a title and a description.

You already entered “test” as title, just put the instructions in the description.

Thanks for the reply. Is there a way to show this message in the chat section? Like what we had in Sara.

This is done via the web app.

More info here: How to let bot start the conversation