If you have a collection of files that you want to transfer to a remote server and they are a subset of files in the current directory or scattered among different directories you can create a list of files and then pipe the list to scp:

$ cat filelist.txt | xargs -i scp {} user@remote:~/backup/

To edit a file remotely using the vim editor, just do the following in a terminal window:

$ scp://username@IP-address//path/to/file.txt

The user must have access to the file being edited.