How to get all relevant dates of row header in matrix visual

[Anonymous]

Hello All,
On matrix visual i want to show all dates related to row header. 


Each project have mulitple risks and due dates for them . able to get all risk by concatenateX, Now need to get all associated dateson matrix visual. 

[lbendlin]

Please provide sanitized sample data that fully covers your issue. Paste the data into a table in your post or use one of the file services. Please show the expected outcome.