How to handle multiple newsletter subscriptions.

Our client wants to be able to have multiple newsletters for their site. Ideally they would like the user to be able to subscribe to newsletters for each business unit as well as a separate mailing for news alerts. 12 potential items in total.

The problem is that as I see it, kentico treats each newsletter item as a separate entity, which means that the user will receive a confirmation for EACH newsletter they subscribe to as opposed to a single confirmation for the mailings that come from the site as a whole. Is there a way around this?

To be clear. I would like to set up the form to show each potential newsletter, but only send one confirmation for mailings in general. Unsubscribe should not be an issue as the generated link in the email should be newsletter specific.

I also believe there is a bug in regards to the Subscription based web parts as they generate an error when attempting to use ANY custom layout. This is detailed in my previous post and has been sent to support via the website.

Based on out client we do not generally have access to the code files and attempt to do whatever we can through the admin via the portal engine. Is there any type of grouping mechanism for newsletters?

I am more than happy to provide any additional information necessary. Thank you in advance for your assistance.