In the default search bar in the top-right of each site, there is an option to search 'This Site'.
We have a couple lists stored on our parent site that need to be searched on a particular child site when searching 'This Site'.
I cannot move the lists under the child site using 'Save as Template' since the lists all exceed the 500 MB size limit.
Can I edit the Result Sources, Query Rules, or Search Settings on the child site to incorporate the parent-level lists in the 'This Site' search results?
If so, how do I go about doing that?
I am using SharePoint Online and have access to SharePoint Designer.