Add multiple emails to alerts

It would be great to have the ability to send alerts to multiple emails. Currently, this must be done by creating multiple copies of an alert with different emails, which is tedious. It would be much easier to add the separate emails in the email field for one alert, maybe separated by commas or semi-colons, like so:

[email1@website.com, email2@website.com, email3@website.com]

or

[email1@website.com; email2@website.com; email3@website.com]