SFTP pulling files for transfer from a remote server not local.

I'm sorry but I am new to this.
In the front end GUI, is there a way to pull files from a remote server? The front end shows just local folders to transfer from and I need to pull from a remote server. This also applies to the command line that is produced. I need to use the command line in another program to run WinSCP remotely.
Thanks

It looks like you haven't even connected.
Normally, WinSCP starts with a Login dialog. I guess, you must have disabled it, otherwise you would not be asking (or I do not understand you).
To open connection from the main window, see:
https://winscp.net/eng/docs/task_connections#opening_additional_connection
To reenable Login dialog popup, see Show Login dialog on startup and when the last session is closed :
https://winscp.net/eng/docs/ui_pref_window

See also WinSCP suddenly opens with two local panels with seemingly no option to open a connection to my server. What do I do?.