Thank you, I got myself that far – I’ve created an HTML Block using the Pop-up element called Newsletter Pop-Up and added it to the menu as you’ve directed.

The problem I’m having is I don’t know how to tell the Pop-Up HTML Block element ‘what’ to include in it. So a little white box opens up, but I can’t find how I add any content to it?

Let’s say I just want to use the Woodmart “Promo popup” that comes with the theme, and want to insert it into the pop-up, how do I do that? Thanks!