Pinging a Role

If there are no users added, add one using Adding a User guide.
Make sure in the notifications Channel the bot has the permissions to mention roles.
From the dropdown present Select the User to Configure.
From the buttons present click on the [Set / Change] Role button.
Now from the dropdown Select a role to be pinged in the notifications.
Now to update {role.pingrole} placeholder in the notifications message, use the using placeholders guide.
By default the {role.pingrole} placeholder is added at the start of the notification message.