Power BI Report Builder: how to change the underlying dataset

[Anonymous]

Hi,

I have a bunch of SSRS reports that I want to migrate to Power BI. I have followed this guidance  https://docs.microsoft.com/en-us/power-bi/guidance/migrate-ssrs-reports-to-power-bi    However, what I also need to do is to change the datasource for all those reports from on premise cube to Azure Analysis Service instance. Since my AAS model tries to mimic the cube as much as possible and the naming is consistent, I want to add a new data source and a new dataset inside of the Power BI report builder and then just change it for my whole report. Is it possible? I see that I can choose a datasource when I create a table but I have no idea how to change it for the already existing reports.

Thank you in advance!