The trader’s accounts and the subscriber’s accounts are independent (their funds are not linked). The trader and the investor, regardless replenish their accounts with their personal funds. Anyone can become a subscriber at the trader's account. All opening market trader’s orders immediately copy to the subscriber’s accounts. The subscriber automatically adjusts his risks, may open and close the orders (fully or partially), which were opened from the trader, change the stop-loss / take profit. The subscriber may unsubscribe at any time.
In this model, the subscriber can receive signals from several traders, that gives him the opportunity to create the portfolios. The subscriber manages his account, as it is usually in the MT, receiving the signals of opening the orders from the traders.