![Testing Features and Limits in MetaTrader 4](https://c.mql5.com/2/17/80_1.gif)
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Testing Features and Limits in MetaTrader 4
This article allows to find out more about features and limits of Strategy Tester in MetaTrader 4.
![Strategy Tester: Modes of Modeling during Testing](https://c.mql5.com/2/17/78_7.gif)
![Strategy Tester: Modes of Modeling during Testing](https://c.mql5.com/i/articles/overlay.png)
Strategy Tester: Modes of Modeling during Testing
Many programs of technical analysis allow to test trading strategies on history data. In the most cases, the testing is conducted on already completed data without any attempts to model the trends within a price bar. It was made quickly, but not precisely
![Features of Custom Indicators Creation](https://c.mql5.com/2/16/77_1.gif)
![Features of Custom Indicators Creation](https://c.mql5.com/i/articles/overlay.png)
Features of Custom Indicators Creation
Creation of Custom Indicators in the MetaTrader trading system has a number of features.
![Features of Experts Advisors](https://c.mql5.com/2/16/76_2.gif)
![Features of Experts Advisors](https://c.mql5.com/i/articles/overlay.png)
Features of Experts Advisors
Creation of expert advisors in the MetaTrader trading system has a number of features.