Yes. You can trade using HFT bots, EAs, and automated strategies.
Please keep in mind that any automated trading is allowed only during the Evaluation stage on $5k, $10k, and $25k accounts and is strictly prohibited on an Expert account.
Also, it's important to be mindful of the challenge rules when selecting strategies and EAs. We do not allow abusive trading such as arbitrage, hedging across multiple accounts, or other forms of cheating. Don't use these strategies to avoid account suspension.