Hello, I’m a beginner WordPress user.

I would like to apply a sidebar not only to single post screens but also across the entire site. I manually added a sidebar to the templates for pages and the front page. However, when it comes to applying the sidebar to the single post template, I want to set the ‘single with sidebar’ template as the default template for individual posts.

In other words, without altering the current layout of the single post template, I would like to activate the ‘single with sidebar’ template for the post pages while keeping the original structure intact. Is this something that can be done?