How to go From Mandrill to Amazon SES

I have Mandrill and Amazon SES set up and I have been using both.
Now that Mandrill is cutting the service, I have to switch all my auto-responder messages to Amazon SES.

How can I do that easily without having to go into the 168 auto-responder messages, unchecking Mandrill and checking Amazon SES?

There must be an easier way to do that in bulk?

Thanks for your help.
Hello Gerard,

So it is not possible for you to create a group for your own account. This is easy way to do. You can keep all limits unlimited.