Adding Content to Sidebars
Adding Content to Sidebars is also referred to as Adding Widgets to Sidebars.
Go to Appearance – Widgets. Your Sidebars are located in the Widgets section of the site.
When in this area, you can add what ever content you need to your Sidebar. Simply drag and drop the required Widget into the Sidebar section.
Be sure to fill out any fields, or adjust settings related to the added Widget and save changes.