Hide Text In Roll Up Totals In Matrix

[Anonymous]

Hi all, 

I have made an activity tracker in Power BI and would like to remove the roll up totals when the rows are collapsed. Essentially I have a Region followed by the projects for that region. Then I have their status according which is reported monthly. The problem I have is when the region is collapsed it BI is displaying a "rolled up total" which makes the table confusing to look at. 

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Is there anyway I can display no values in the matrix when the region rows are collapsed and only display them when a row is expanded? I have tried a few DAX solutions with little success as I am relatively new to Power BI. 

Thank you very much in advance for any help.

[amitchandak]

@Anonymous , I doubt we can capture an expanded event. We have isinscope to check scope, but that will not help here

https://www.kasperonbi.com/use-isinscope-to-get-the-right-hierarchy-level-in-dax/