Show a list of files that meet a criteria

I'm just getting started with this wonderful product and am hopeful it will meet my needs.
One of the things I need to do is go through a folder structure and create a list of files whose video-bit rate is below a threshold--say 100.
1. I see I can show in Finder and I see the rule matched but there's no open Finder window showing the list. Did I do something wrong?
2. Once this rule processes the folder does it stop or keep processing
- only when folder contents change?
- should I pause it to not have it process then until I want it to?
One of the things I need to do is go through a folder structure and create a list of files whose video-bit rate is below a threshold--say 100.
1. I see I can show in Finder and I see the rule matched but there's no open Finder window showing the list. Did I do something wrong?
2. Once this rule processes the folder does it stop or keep processing
- only when folder contents change?
- should I pause it to not have it process then until I want it to?