This feature works on all page types.
Base Tags
NationBuilder automatically enables the sidebar checkbox on all new pages, so we've deactivated them by default as sidebars are rarely used. Add the following tag to activate the sidebar on a page (note: the sidebar checkbox still need to be enabled):
layout_sidebar
By default, the sidebar will display on the right, to display the sidebar on the left use this tag instead:
layout_sidebar_left
Add the following tag to the page with the content you would like to display in the sidebar:
sidebar_pageslug
replace pageslug with the slug of the page that the sidebar is located on.
To remove the headline from the sidebar, add the following tag to the page with the content you would like to display in the sidebar:
excerpt_no_headline