Solutionunvalidated
In SFTP (and actually even in SSH shell), the standard way to get to a machine that is accessible via another machine only is via port forwarding. — That's possible with WinSCP. Tension: Getting to another machine by executing a command is not really compatible with how SFTP protocol works. Outcome: That's possible with WinSCP.
7630dfaf-2bee-4178-92b9-e8e4181db942
In SFTP (and actually even in SSH shell), the standard way to get to a machine that is accessible via another machine only is via port forwarding. — That's possible with WinSCP. Tension: Getting to another machine by executing a command is not really compatible with how SFTP protocol works. Outcome: That's possible with WinSCP.