For traders managing several of their own accounts, the copy-trading article says they are welcome to manage them together and mentions one third-party copy trading tool as an example. Copying must stay between your own accounts. The Terms make any third-party software, EAs or API integrations the account holder's responsibility, and FT+ may demand access to it, including logs and source code; refusing is a breach. The pages don't mention any shared-server or IP rule. EAs, algos and bots are allowed, within the program rules and limits. Arbitrage, grid trading, tick scalping and other abuse of the simulated environment are banned. The EA article says an EA may not be used to copy trade or hedge across FT+ accounts. FT+ doesn't support EAs, and the Terms let it demand access to any third-party software you use, including source code.