The futures rules name trade copiers and make you responsible for any software error or unintended trade, with no resets for copier problems; on NinjaTrader only one named copier is permitted, in its compliance edition. EAs may run on a VPS. The device policy says accessing multiple accounts from the same IP or network is not allowed and isn't reconciled with own-account copying; cloud copiers aren't mentioned. EAs are allowed if they don't copy signals that aren't yours, scalp against the rules, run latency, reverse, hedge, arbitrage or HFT strategies, or use emulators. On CFD Prime $100K and $200K accounts, EAs may not trade within 2 minutes of high-impact news. You may run an EA on a VPS. Accounts using prohibited EAs are denied upgrades and payouts, and the Challenge fee is not refunded.