Inherit featured and custom images from parents for posts, pages, custom post types, categories, tags, and custom taxonomies.
Featured Image
If no featured image has been selected - for a post, page, or custom post type - the WPSSO Inherit Parent Metadata add-on will assign the first featured image found from its parent, grand-parent, great-grand-parent, etc.
WordPress does not offer featured images for taxonomy terms (categories, tags, and custom taxonomies) - to assign a custom image to a term, select an image in the Document SSO metabox when editing a term. The WPSSO Inherit Parent Metadata add-on will cascade the custom image(s) to the children of that term, along with the children of those children, etc.
Custom Images
If no custom image has been selected in the Document SSO metabox - for a post, page, custom post type, category, tag, or custom taxonomy - the WPSSO Inherit Parent Metadata add-on will assign the first custom image found (if any) from its parent, grand-parent, great-grand-parent, etc.
Inherited images are assigned as default values - you can always edit any child to select a different featured or custom image (which will then be inherited by its own children).
The Inherit Parent Metadata (WPSSO IPM) add-on makes no permanent changes - deactivate the plugin to disable the inherited image feature.
There is no add-on settings page for this plugin - simply install and activate the plugin.