I have a Document center with a subsite for Client Files. In the sub site is more than 1000 document libraries. All the document libraries have the same default content type. I need a powershell script to add the same Key filters fields (already crawled properties) to all document libraries in the sub site to appear as filters on the left of each library. See images.
NS: The powershell script must have clear indications / comments on the actions as well as where to put in the necessary variables.