---
title: "Traces & Axes"
description: "Add tags to a trend, configure multiple Y-axes, and customize trace colors"
source_url: https://ai-ops.com/docs/trends/traces-and-axes
---

# Traces & Axes

Each tag added to a trend becomes a **trace** — a colored line on the chart. The **trace panel** on the right side of the detail page manages which tags are plotted and how they are scaled.

## Adding & Removing Traces

Use the **tag search** at the top of the trace panel to find and add tags. Each new trace is automatically assigned a color from a 10-color palette. Click a trace's **color swatch** to change it using preset swatches or a full color picker.

Remove a trace by clicking the trash icon. Changes are not persisted until you click **Save**.

> [!NOTE] Model-managed traces are locked
> Traces on a model-managed trend show a lock icon and cannot be removed — they are synchronized from the model's bindings.

## Multiple Y-Axes

By default, all traces share a single Y-axis. If your tags have different scales (e.g. temperature in degrees and pressure in PSI), click **Add Y-Axis** to create additional axes.

### Axis Configuration

Click the **edit icon** on an axis header to configure it:

| Setting | Description | Default |
|---------|-------------|---------|
| **Label** | Display name shown on the chart | Axis 1, Axis 2, etc. |
| **Position** | Left or Right side of the chart | Left |
| **Min / Max** | Hard limits — the axis never exceeds these bounds | Auto |
| **Suggested Min / Max** | Soft limits — preferred range, but the axis expands if data requires it | Auto |
| **Color** | Custom color for the axis title and tick labels | Theme default |

> [!TIP] Hard vs suggested limits
> Use **Min/Max** to fix the range (e.g. 0–100 for a percentage). Use **Suggested Min/Max** when you want a preferred range that can still expand for outliers.

### Assigning Traces to Axes

With two or more axes, the trace panel switches to a **grouped view**. Drag traces between axis groups to reassign them. Traces in each group share that axis's scale.

The left axis displays grid lines; right axes show ticks and labels only. Each axis is color-coded to match its traces.

---

## What's Next

- [Settings & Export](https://ai-ops.com/docs/trends/settings-and-export.md) — adjust sampling, display options, and download data
- [Trends](https://ai-ops.com/docs/trends/introduction.md) — overview and chart navigation