On some of my pages (not posts) in my Wordpress site, I need to include a sidebar that display s information relevant to the main content of the page the user is on. I can choose, using Edit Page in WP Admin, the page template I want to use for my page. This template includes the sidebar. No problems here.
My question is: the sidebar content will vary page by page, so how do I make the sidebar content dynamic? I don't want to change the html in the sidebar template because that would reflect on all pages using the sidebar, so I can't put my page-specific content there. And, I don't want to create a million different sidebar templates with html content hard coded in to the template. My sidebar template contains the "shell" for the positioning, colors, font, etc. I just want to have a way to change the content in the sidebar on a page by page basis, without that change reflecting on any other page.
It would be great if the Page editor would include a separate content input area for sidebar content.
Is this possible, and is my question clear?