Thanks for your post.

This request is being tracked already:
https://winscp.net/tracker/416

I have couple of network interfaces and I need from time to time connect to specific FTP-servers with specific IP address.
I have gotten around this issue by manually giving priority to network adapter's in Windows.

So the feature as a user story,
I as user, would want to select a network adapter from list of network adapters in the Connection settings, so when I connect to a server I can trust that I have specific IP.

Would this be possible?

Thank You