How to add additional horizontal gridlines on a graph?

Hi alpha-san ,

Hope all is going well.

In order to solve your problem, I did many tests and then found the solution to your problem, it is so convenient.

Please follow these steps:

1. Select the Visualizations tab on the right.

2. Select "Y-Axis Constant Line".

3. Select "Add line".

In this function, you can add as many horizontal grid lines as you want.

Where "Value" represents the value at which you want to add horizontal grid lines. "Color" represents the color of the horizontal grid lines. "Transparency" represents the transparency of horizontal grid lines. "Style" indicates the style of horizontal grid lines, including Dashed, Solid, and Dotted. "Data label" indicates whether the data points of the current horizontal grid line are displayed next to the horizontal grid line.

Should you have any questions or concerns, please do feel free to contact me.

Best Regards,
Yang
Community Support Team

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If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!