This article applies to Dizy, Myx, Glamon and Vio themes
Point to note: Depending on your purchased theme, screenshots can vary.
By default, We've not added sidebar for single posts so that, customers can add sidebar as per their wish through 'WP Bakery Page Builder'.
Please follow the below steps to add sidebar:-
1) Enable 'WP Bakery Page Builder' for posts by following our tutorial:- https://radiantthemes.zendesk.com/hc/en-us/articles/360041218154-How-to-enable-WP-Bakery-Page-Builder-for-Custom-Post-Types
2) Go to any specific post and divide the row as per your wish. Now, add sidebar by using 'Widgetised Sidebar'.
3) Open the 'Widgetised Sidebar' and choose sidebar from 'Sidebar' dropdown.
Point to note: Sidebars of 'Sidebar' field (Highlighted section of 'Figure -2') are coming from 'Appearance > Widgets'.