PowerBI Live streaming dataset

Hi everybody

I try to create a streaming Dataset. I followed the following instructions with power automate:

https://www.reportsimple.com.au/post/create-a-real-time-streaming-dataset-in-power-bi-using-microsoft-flow

Everything worked fine for me, I just wondered if there is theres a possibility instead of "add rows in dataset" to have a step in power automate like "edit content in dataset".....

Actually, I do not want to add a row when working in the source file but just updating the content in the designated fields.

How can I do that?