Two Content Areas?

You would have to use GP Hooks to add a container outside of the content container.

You would also have to apply the appropriate styling to your second content area, and use conditionals to apply it to specific pages: https://generatepress.com/forums/topic/slider-6/#post-167593

Thanks for your guidance Tom and for the link. It's exactly what I needed to get me started!

No problem :)

Tom, can you tell me how to put it in a separate box please. I want to make the box the full width and put a border around it.

Thanks!

You'll need to use HTML/CSS:

<div class="my-box">
     My content
</div>

And then the CSS:

.my-box {
    background: white;
    border: 1px solid #DDD;
}

You are an absolute gem!!!! Thank you so much!

You're welcome :)