Optin in call to action box?

Hi there!

I am starting to build websites for other coaches, mainly in the area of yoga, wellness and nutrition.

The op tin box under the fold (like in the picture enclosed) is super popular at the moment, so I am researching which visual composer theme to recommend. I know High End has the call to action box, but its not quiet the same. I would need something that already comes with a box to enter the email address – is that possible without installing another plug in?

I was also wondering how I could create the wide image enclosed (where its says “buy the book”) to have a clickable button that leads to a sales page?

Thank you so much!

Love,
Sarah