Filter and move

Hi everyone,
I am trying to create a workflow in Keyboard Maestro that works the same was as the setup that I have been using for years in Automator. I find Automator a lot simpler to be honest but really want to learn KM as I know it's way more powerful. I am trying to get the contents of a specific folder on my Mac and then filter the contents of that folder to a specific file (.pdf) once I have filtered the .pdf file I then want to move it to another folder. This is simple in Automator but after spending several hours trying to do this in KM I am no closer to being able to even get the folder contents? I beleive that there is a set of rules that KM uses and I need to learn but have no idea. Would anyone mind giving me some guidance based on my criteria :slightly_smiling_face: