Filter option to include subfolder contents

[#1]

We have many clients with branch locations. These proofs are organised in folders and subfolders. Our management team would love to be able to "filter" for all files in a folder with an option to include subfolder contents that they are browsing in at any particular time. eg: filter for "changes required" and owned by

[#2]

I am interested in creating smart folders that use project and folder names as the filters. I would like to be able to create smart folders with filters such as "'Project Name>>Equals>>XXXXX' and 'Folder Name>>Equals>>XXXXX.'" Having these filters would allow my team to archive only our final project documents without having to include all documents that are on a project.