Can I change the data source for a report in PowerBI Service?

[esmem]

I have an existing report that was created using PowerBI desktop. However I am on a Mac so can only access the online PowerBI service. I need to change the Excel file the report is using but I cannot find the same 'Transform data / Data source settings / Change source' buttons as there are in the desktop version. Does anyone know if and how I can do this? 

[lbendlin · Accepted solution]

Short of trying to use  the REST API calls there's not much you can do on a Mac.

Datasets - Update Datasources In Group - REST API (Power BI Power BI REST APIs) | Microsoft Learn