How can we program custom indicator in Metatrader?

<p id="isPasted">Custom indicators are programs developed with the MetaQuotes Language 4 (MQL4) by a trader. These indicators can be added to the MT4 platform manually. The trader can modify, change and add the default indicator’s codes and consider important market factors impacting the market trend to create the ideal indicator. Developing a custom technical indicator enables traders to understand whether the current trend will remain the same or reverse. It also provides them with the ideal entry and exit signals. It helps simplify the complicated trading process by keeping the trader’s specific trading requirements in mind. There also exist several free and paid custom indicators on MT4, which you can edit as per your trading requirements. You can download these indicators on your computer and restart the platform to locate the custom indicator added to your navigator panel. To modify the existing indicators, you can execute the modify command that you will find in the ‘navigator – custom indicator’ window. Go to the context menu, where you will be able to open the MetaEditor. Here, you can change the settings/properties of the indicator to customize it as per your preference.</p><ul><li>You can create a custom indicator by using the built-in MetaEditor tool.</li><li>The indicators can be set up by selecting working parameters, and you can change the settings in the ‘window of client terminal settings’ according to your trading preferences.</li><li>The custom indicator can be imposed into the chart after calculating the parameters.</li><li>Delete the custom indicator when you do not want it on your chart anymore and use it again whenever required.</li></ul>