In the left-hand panel, click Datasets and select the dataset you need. If you do not have a dataset, create one.
In the top-left corner, select the Fields tab.
To the right of the field's row, click and select Copy ID.
Open the chart you want to add a parameter to, then click → Copy link at the top. You can also copy the chart URL from the browser address bar.
Add the field ID to the chart URL as a request parameter. You should get a link in the following format: https://datalens.yandex.cloud/wizard/yfn1k6yxud7yr-example-chart?17ecb9a1-c8a5-4811-b53e-c8229f88fcba=<value>, where: