By using shortcode we publish the Sidebar Navigation.

How to configure

[[accordion] 
    [accordion_item title='ITEM_TITLE']ADD_CONTENT_HERE[/accordion_item]
    [accordion_item title='ITEM_TITLE']ADD_CONTENT_HERE[/accordion_item] 
    [accordion_item title='ITEM_TITLE']ADD_CONTENT_HERE[/accordion_item]
    [/accordion]]