Set classification system in listings
Not only for classifieds some items, but even for managing a business, you should use the Listdom classifieds plugin WordPress and learn to work with it easily. With Listdom Franchise Addon you can assign a parent to listings and in parent listing show the child listings and in child listings show parent listing. It will be like a branch and franchise structure.
When you download and install “Franchise Addon” a new section will be added to the Addons tab of Listdom -> Settings and you can ensure that this addon is installed successfully and change some configurations.
Franchise Category: If you select a certain category, then only listings of the selected category would show in the parent field.
This addon will add a “Listing Parent” field to add/edit form and you can set parent for the listing that you want.
Then the parent and child listings will show in the related listings.