> For the complete documentation index, see [llms.txt](https://trylevel2.gitbook.io/getting-started/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://trylevel2.gitbook.io/getting-started/technical.md).

# Technical

- [Logging in and 2FA](https://trylevel2.gitbook.io/getting-started/technical/logging-in-and-2fa.md): Identity & Access Management
- [Settings and preferences](https://trylevel2.gitbook.io/getting-started/technical/settings-and-preferences.md): System requirements and recommendations for optimal performance
- [Managing your subscription](https://trylevel2.gitbook.io/getting-started/technical/managing-your-subscription.md): Billing & Subscription Management
- [Technical support](https://trylevel2.gitbook.io/getting-started/technical/technical-support.md): Help & Support
- [Connect your Level2 account to the Alpaca API](https://trylevel2.gitbook.io/getting-started/technical/connect-your-level2-account-to-the-alpaca-api.md): Connecting your Level2 account to the Alpaca API allows you to seamlessly integrate powerful trading functionalities, enhancing your trading experience.
- [Drawdown simulations](https://trylevel2.gitbook.io/getting-started/technical/drawdown-simulations.md): The importance of measuring drawdown
- [Backtest logic and execution](https://trylevel2.gitbook.io/getting-started/technical/backtest-logic-and-execution.md): Learn more about how we execute trades in the backend and the principles we use to give you the most accurate information for your trades.
- [Data block guide](https://trylevel2.gitbook.io/getting-started/technical/data-block-guide.md): This guide will help you understand which Block accepts which data type
- [Hedging vs Netting for CFD trading](https://trylevel2.gitbook.io/getting-started/technical/hedging-vs-netting-for-cfd-trading.md)
- [How to use Sharpe and Sortino ratios to optimize your strategy](https://trylevel2.gitbook.io/getting-started/technical/how-to-use-sharpe-and-sortino-ratios-to-optimize-your-strategy.md)
- [Extended hours trading for US equities](https://trylevel2.gitbook.io/getting-started/technical/extended-hours-trading-for-us-equities.md): Understand how orders are managed during pre-market and after-hours
- [Trading on margin](https://trylevel2.gitbook.io/getting-started/technical/trading-on-margin.md): A simple guide to trading on margin and short selling
- [Smart Strategies on Level2](https://trylevel2.gitbook.io/getting-started/technical/smart-strategies-on-level2.md): In this article we explain the concept behind Smart Orders and how you can use it on Level2 to create your conditional strategy
- [Perpetual Crypto Contracts](https://trylevel2.gitbook.io/getting-started/technical/perpetual-crypto-contracts.md): A simple guide for understanding Crypto perpetual contracts before trading.