# WickScript indicator

> Runs your own WickScript code as an indicator and draws its lines, marks, levels and HUD lines on the chart.

Updated: 2026-10-24T23:15:41.000Z · https://chartrider.com/docs/indicators/wickscript/

## What you see
The WickScript indicator draws whatever its script asks for: lines and histograms from `show`, dots for events, text marks above or below candles, horizontal levels (active ones solid with a label, finished ones dashed and faded) and lines in the [HUD stack](https://chartrider.com/docs/charts/huds/). The script's first line decides whether it draws on the price chart (`on chart`) or in its own panel below it (`in pane`, with a **Height** setting), and gives the script its name.

Added from the indicator list (`F3`), it starts with a sample script: a fast and a slow EMA (Fast 9, Slow 21) and a ▲ mark below the candle where the fast one crosses above the slow one.

## Writing and editing
You edit scripts in the [Strategy Lab](https://chartrider.com/docs/strategies/strategy-lab/) under **Scripts**: choose a script or a template on the left, change the code and press **Apply** (`Ctrl` + `Enter`, `⌘` + `Enter` on a Mac) to put the new version on the chart. The editor shows errors, the script's inputs and a preview of its outputs on the chart's candles. The language is described in [WickScript](https://chartrider.com/docs/wickscript/).

If a script has errors, the chart lists them in the HUD, marked ⚠. An `alert` shows a notice when it fires on the latest candle.

## Settings and outputs
The settings are the script's own `input` lines – Fast and Slow below belong to the sample script and change with your code. The `show` outputs can be used in Trade Setup triggers, filters and exits like those of any other indicator.

## Access
The indicator is listed only with WickScript access, which you can unlock by inviting friends – see [Account](https://chartrider.com/docs/account/).

## Settings

Open the settings with the slider icon next to the indicator (Indicators, `F3`). Numeric settings can be swept as Step 1 / Step 2 parameters when you run a strategy.

| Setting | Type | Default | Description |
|---|---|---|---|
| Fast | Number | `9` | Input of the sample script: length of the fast EMA. Your own script replaces it with its own inputs. |
| Slow | Number | `21` | Input of the sample script: length of the slow EMA. |

## Outputs

The outputs are the `show` lines of your script: each one becomes a value for Trade Setup triggers, filters and exits. See [WickScript indicators](https://chartrider.com/docs/wickscript/indicators/).