Hello Luis Filipe Diogo Gonçalves

Thank you for your purchase.

I am sorry to disappoint you, but unfortunately something like this is not possible with the plugin's built-in features.

SMS and email notifications are only sent through triggers depending on the status change in the appointment, or if you set up reminder notifications.

I will forward it to our developers, Luis

I'll kindly ask you to add it as a feature suggestion on this page. Features are pushed up on our "to-do" list when there are a lot of customers requesting those features, so having your vote as a customer can be beneficial to this feature being developed sooner.