With Avada 5.2 and up, you now have the option to enable sticky sidebars on your Avada site. When the Sticky Sidebar is enabled, the sidebar will scroll with the content as the viewer moves down the page. Once the bottom of the sidebar enters the viewport, it will become stationary and stay in place as the viewer scrolls down to the bottom. If the sidebar is already shorter than the content of the page, it will begin as a sticky sidebar and remain fixed on the screen as the viewer scrolls down the page.
For more information on Widgets Sections and Sidebars in Avada, see our post here.
Enabling Sticky Sidebars Site Wide
You can enable the Sticky Sidebar feature for all sidebars on your site globally, through the Avada Theme Options. You'll find this setting in WP Admin > Avada > Theme Options > Sidebars > Sidebar Styling. You can enable the Sticky Sidebar effect for "Sidebar 1", "Sidebar 2" or select "Both" to have the effect on both right and left sidebars when using a dual sidebar layout.
Enabling Sticky Sidebars Per Post or Page
If you want to have a variation for a post or page from how your site's sidebar behaves globally, you can use the Fusion Page options to make adjustments that will affect only that post/page. These settings will override whatever you have set in your global theme options.
To find these settings, open the editor of the post or page you're working on, then scroll to the bottom of the editor page to find the Fusion Page Options. Check under the Sidebar tab to find the Sidebar's settings.