At times, you wish to add Divi modules right inside Sidebar Widget and with this extension, you can add any Divi Library Layout to Your Widget Area – Sidebars, Footer or any that you’ve created.
Make sure to activate the extension by going to Divi Supreme -> "Enable Divi Library Widget" and enable it.
To use the Divi Library Widget extension, go to Appearance -> Widgets and there you'll find a new widget "Divi Library Widget". Just drag it and drop it to the place where you want to show It can be Sidebar, Footer etc. So that's it, that's how easily you can use any Library layout in your sidebar.