# Sway Charts Pro User-Defined Indicators - [Introduction](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/introduction.md) - [1.1 Access to the Sway Charts scripting framework (UDI vs UDIX)](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/introduction/1.1-access-to-the-sway-charts-scripting-framework-udi-vs-udix.md) - [1.2 Example UDI code](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/introduction/1.2-example-udi-code.md) - [1.3 Adding a UDI to a chart](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/introduction/1.3-adding-a-udi-to-a-chart.md) - [1.4 Lifecycle](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/introduction/1.4-lifecycle.md) - [1.5 Alerts](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/introduction/1.5-alerts.md) - [1.6 Indicator-on-indicator](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/introduction/1.6-indicator-on-indicator.md) - [1.7 Technical note: web workers](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/introduction/1.7-technical-note-web-workers.md) - [1.8 Technical note: dates](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/introduction/1.8-technical-note-dates.md) - [Initialisation: UDI.onInit()](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/initialisation-udi.oninit.md) - [2.1 Return value from UDI.onInit()](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/initialisation-udi.oninit/2.1-return-value-from-udi.oninit.md) - [2.2 The plots\[\] array](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/initialisation-udi.oninit/2.2-the-plots-array.md) - [2.3 The settingsFields\[\] array](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/initialisation-udi.oninit/2.3-the-settingsfields-array.md) - [2.4 Context data passed to UDI.onInit()](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/initialisation-udi.oninit/2.4-context-data-passed-to-udi.oninit.md) - [Calculating data: UDI.onCalculate()](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/calculating-data-udi.oncalculate.md) - [3.1 Reading settings fields](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/calculating-data-udi.oncalculate/3.1-reading-settings-fields.md) - [3.2 Input data for the UDI](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/calculating-data-udi.oncalculate/3.2-input-data-for-the-udi.md) - [3.3 Updates of the current bar only](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/calculating-data-udi.oncalculate/3.3-updates-of-the-current-bar-only.md) - [3.4 Calculating output data](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/calculating-data-udi.oncalculate/3.4-calculating-output-data.md) - [3.5 Requesting out-of-band updates](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/calculating-data-udi.oncalculate/3.5-requesting-out-of-band-updates.md) - [3.6 Technical analysis: moving averages, ATR etc](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/calculating-data-udi.oncalculate/3.6-technical-analysis-moving-averages-atr-etc.md) - [Changes to the chart or parameters](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/changes-to-the-chart-or-parameters.md) - [4.1 UDI.onContextChange()](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/changes-to-the-chart-or-parameters/4.1-udi.oncontextchange.md) - [4.2 UDI.onParameterChange()](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/changes-to-the-chart-or-parameters/4.2-udi.onparameterchange.md) - [Creating drawings, event markers, and bar highlights](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/creating-drawings-event-markers-and-bar-highlights.md) - [5.1 Creating drawings](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/creating-drawings-event-markers-and-bar-highlights/5.1-creating-drawings.md) - [5.1.1 Drawing properties](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/creating-drawings-event-markers-and-bar-highlights/5.1.1-drawing-properties.md) - [5.2 Creating event markers](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/creating-drawings-event-markers-and-bar-highlights/5.2-creating-event-markers.md) - [5.2.1 Click notifications from event markers](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/creating-drawings-event-markers-and-bar-highlights/5.2.1-click-notifications-from-event-markers.md) - [5.3 Creating bar highlights](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/creating-drawings-event-markers-and-bar-highlights/5.3-creating-bar-highlights.md) - [Notifying the user](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/notifying-the-user.md) - [6.1 Creating toast](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/notifying-the-user/6.1-creating-toast.md) - [6.2 Changing the panel background colour](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/notifying-the-user/6.2-changing-the-panel-background-colour.md) - [Adding HTML to the chart](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/adding-html-to-the-chart.md) - [7.1 Adding HTML](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/adding-html-to-the-chart/7.1-adding-html.md) - [7.2 Positioning the HTML](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/adding-html-to-the-chart/7.2-positioning-the-html.md) - [7.3 Sending messages from the HTML to the UDI](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/adding-html-to-the-chart/7.3-sending-messages-from-the-html-to-the-udi.md) - [7.4 Sending messages from the UDI to the HTML](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/adding-html-to-the-chart/7.4-sending-messages-from-the-udi-to-the-html.md) - [Recommended trade](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/recommended-trade.md) - [8.0 Recommended trade](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/recommended-trade/8.0-recommended-trade.md) - [Other indicator topics](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/other-indicator-topics.md) - [9.1 Collecting external data](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/other-indicator-topics/9.1-collecting-external-data.md) - [9.2 Converting dates to chart time](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/other-indicator-topics/9.2-converting-dates-to-chart-time.md) - [9.3 Multi-timeframe (MTF) indicators](https://sway-technologies.gitbook.io/sway-charts-pro-scripts-documentation/sway-charts-pro-user-defined-indicators/other-indicator-topics/9.3-multi-timeframe-mtf-indicators.md) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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