Hey Gerald,
Thanks for reaching out—buying the Pro version will NOT enable a simple option for displaying things side-by-side, and in fact you can totally achieve that with just the free version.
The issue is not one of our plugins themselves—it’s one of CSS and floating the elements.
So, the elements are listed by default, but to float them so they are in a horizontal line, you can use custom CSS to float them left (or right). You can learn about this process here → https://css-tricks.com/all-about-floats/
Whether you have Events Calendar Pro or not, getting your listed elements to display side-by-side will require writing custom CSS on your site. We cannot help with that (check out the “Product Support” section here for more information on why), but if you share a link to where you have things listed on your site I can try to recommend some custom CSS that would facilitate those changes.
Thank you,
George