how to add sidebar to section in page (example below)?

Good morning I've created a call-to-action section in the sidebar of the homepage of my Joomla-website. But even when I upload the themplate, it's not showing on my website. If I try the live...

Hi, I would like to add sections to my homepage, but the same time I would like to have a sidebar. The section should be the same width as my content, but only on the homepage template. When I try...