Some Allwebco templates use a single global file for the sidebar. The "sidebar.js" or "sidebar.htm". In some cases you may want to have one or more pages with a different sidebar. This is fairly simple to set up.
Make a copy of the sidebar.js. Call it "sidebar-2.js". In some templates this will be a "sidebar.htm" instead and you will name this "sidebar-2.htm".
Open the page that you want to have different sidebar on. Search for "sidebar.js" or "sidebar.htm". This will only appear once inside the page. Edit it so it says "sidebar-2.js" or "sidebar-2.htm". Save the HTML page.
Edit the sidebar-2.js with your different content. Or this may be named "sidebar-2.htm"
Open the HTML page you edited in your browser and see if the different sidebar is now there.