Hi, @Anonymous
According to your description, you have created a sparkline in a table and according to known information, visual objects with a sparkline cannot be pin to a dashboard.
Sparkline related links:Create sparklines in a table or matrix in a report (preview) - Power BI | Microsoft Learn
So far, it is impossible to click the line chart and expand, you can submit an idea for here and the product team will take note of such a need.
New tab (powerbi.com)
Best Regards,
Yang
Community Support Team
If there is any post helps, then please consider Accept it as the solution to help the other members find it more quickly.
If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!
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