Bringing in two datasources: SSAS live and a separate SSAS Import (Extract) in the same file?

I am trying to create a powerbi dashboard combining both a live SSAS connection and an import for more granular row level data. 

The reason why I am doing this is because using a live SSAS cube connection for highly granular row level data considerably slows down performance. I am thinking of using the import functionality to extract this granular row level data and maintain a live SSAS cube connection for summary data. 

Is it possible to achieve this?