Copy/Move Files Node

Why was this node deprecated? Its very useful and worked well for my purposes. I could pass a file location to it through a standard input port. I assume it was replaced by the Transfer Files node, although there’s no clear documentation that I can find. I can’t figure out how to input to the Transfer Files node. A flow variable doesn’t seem to work. Adding an input port produces a blue input square which won’t accept data from a standard output port in the previous node. I’m lost. Can someone help please.