Separate names with a comma.
If that still doesn't work. Please send an email to the given address in the screenie \^_^/ ^ yes it should count as 4 :)
When you posted this thread asking for help you didn't have 4 forum posts yet. Maybe try again after replying one more time somewhere? :)
There is a file attached to my post https://aemservers.net/attachments/image-png.2863/
Please read the screenshot