Hello,
There is a good chance that this will be added in a future release, but not right now. Does the program you mentioned work if you don't use the right-click menu, so if you just start Rightload, add the files from the menu and click Upload?
hi I hope this feature will be added as soon as possible

If I lunch Rightload using SocksCap - it is able to connect to the server, but the actual upload is always at 0% - perhaps it starts some second process or child process or so... and it doesn't fall under SocksCap...