Sorry, but we cannot know, what are you missing. The article, you point to, contains all the information we can give you on the subject. If it is unclear, you have to tell us, what is unclear.

Hi,
I am looking to setup a task or command that copies all folders and files from a local path to multiple ftp servers using sftp. and i don't want to type every password for the servers everytime.

i am also new to winscp so i don't know much about it.
i swa this: https://winscp.net/eng/docs/script_upload_multiple_servers
but i don't see the logic in it.