Ok, I read the other posts about using Monitored Folders, and am still not sure how they work.
What I -Want- is to have a shared folder on the Server's computer that I can put things into remotely and have them -automatically- be moved/copied into the List of files to be printed (underneath the "Upload G-Code" header) as if I had manually selected the file and imported it.
I understand I will need a separate folder for each printer.
I don't want things to start printing automatically as I may need to clear the build plate, prep the build plate, change filaments, or a list of other things that may be needed to be done before hitting the PRINT button.