> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://mezmo.ferndocs.com/add-a-plot-to-a-graph/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://mezmo.ferndocs.com/_mcp/server.

# Add a Plot to a Graph

You can add additional data points to a graph as a way to compare data. Using the graph created in , you'll add additional plots showing other error levels.

1. Go to the graph created in [Create a Graph](https://docs.mezmo.com/2.8/docs/create-a-graph).
2. Click **Add Plot i**n the lower-left corner of the graph\*\*.\*\*
3. For **System Fields**, select  **All Lines**.
4. For **Optional Plot Filter,** enter `response:404` to return all 404 codes.
5. Repeat steps 2 - 4 to add `response:>500` .
6. Click the **Save** button to add the new plot to graph
7. Change the line color by clicking on the colored icon beside the plot value.

![](https://uploads.developerhub.io/prod/2KW7/0oy6un9b4zvcwzj9a7363n8htpc1h4v0lb2vr5t9k5b0mj35mxo437pfbthp0jwz.png)

Next, you'll add a breakdown to show which app is creating the most error messages.