Sidebar on both sides?

I saw a topic from around a year ago where someone was asking if it was possible to have more than one sidebar on a single page. I now find myself needing this as well but can’t see anything related to this in the settings or documentation. In the response, it was stated that this was something that was requested a few times but hadn’t been implemented yet.

I’m wondering if it’s now possible a year later or if this feature request still hasn’t made it into the theme. I’m more than comfortable with code if there’s a hook I can attach to and add this with some PHP.