How do i configure files to download directly?
It sounds like what you're trying to do is download files from your Linode on different computers so you don't need to upload an SSH key-pair for every device. That's pretty simple to configure.
What you'll want to do is access the following file:
In that file you'll want to make sure that Password Authentication is enabled. We have a section on this in our guides that will help:
You'll want to make sure that Password Authentication is set to 'yes' in that file, and that way you'll be able to connect to your Linode from whatever computer you need to, without worrying about adding the SSH key-pair to every machine you're using.