For Custom Side Bar 1st of all you will go to Wp-admin > classiads dashboard > theme settings > general settings,
Here you will create a custom side bar as in the attached image.
You can create multiple sidebar on home page section wise.
After that, you will add a widget
Wp-admin > Appearance > Widget
Now you will go to pages > Edit home page > select column divider as you want
Now click on + button in front of Listing to listing element and add the element of Widgetised sidebar as in attached image > save and update
Side bar will be shown on home page look like this
Hope this Article will help you