Associate existing child record to existing parent record – Connect Terms (Parent/Child)
You can find basic information about Parent Field option here
By clicking “Connect” button Vehica will assign all child terms (e.g. Banana) to Parents (e.g. Fruit) basing on listings that are in your database. It can be useful if you imported database of listings (e.g. via WP All Import) and you wish quickly create this type of parent-child relations for your search form or “submit listing” form.