Composite model for Live connection to Azure Analysis Services and EXCEL

Hi, I have a Live Connection to Azure Analysis Service. I need to add a dimension table to build many:one relations (Fact_Billing_Actual: DimTableexcel) AND (Fact_Finance_Daily_Budget: DimTableexcel).     However, as you can see from the image, power bi does not allow getting new data.. how do i go about this? thank you