I'm not sure, what you ask for.
So just write a script for that. Do you have any specific problem?

Start here:
https://winscp.net/eng/docs/guide_automation

Is there a way to transfer files from one remote session (session #1) to a second remote session (session #2) after both sessions have been established successfully? I realize that I can manually perform the download and upload separately, but would prefer the download and upload to be automated. It would be fine if the files need to be first downloaded to a local directory from session #1 and then uploaded to the remote directory of session #2 as long as it's an automated (one-step) process on the part of the operator.