Imported folder update

I import a folder to AE, and have AE watch that folder so that any new items placed into that folder can get pulled in either auto or a right click on the Project panel folder and update. For example... I have a SOURCE FOOTAGE folder that is constantly being added to, I can right click on the folder in the projects panel and UPDATE and any new items get pulled into the project (or have new items auto imported when opening the AE project,e etc)