Medved Trader connection to Directa is a bit different than with others. You login to Darwin 2 and Medved Trader then connects to that.
NOTE: Darwin 2 must be running in order for MT to get quotes or allow trading via Directa. You can minimize it and close all tiles if you want, but it must be running. Also, just a reminder - you would need to restart Darwin 2 nightly, same as before.
Just Select "Directa (Italy)" as the quote source on top left of the portfolio window and/or Level II and DOM windows.
For trading, go to FILE / SETTINGS / Trading / Accounts and add the Directa account there.