Thanks for your reply.
Actually, whiel not common practice, we do not want to address nthis at the folder level but at the file level. In your example, with the folder called reports, there may be 100+ sub-folders. In each of thos sub-folders there will be many different files. in addition, in each of those sub-folders there is a specific unique file that starts with the string/file name "calendering*.*". In this scenario, we need to lock down the single file, in each of the sub-folders, to read-only for the user group but for full write/modify for a single user.
Hope thsi helps, and apprecaite yuors and anyone else's thoughts.
I expect that there is the ability to generate a script/batch file that will identify the file by string name, and then allocate/change the appropriate permissions on the specific files.