Tree Map

Hi andykbba 
You need to unpivot your table to get the form:

Then you can use the top n filter.

Guide to unpivot :

https://www.youtube.com/watch?v=T8Ekr_sLP-0

Filtering by top n:

https://www.youtube.com/watch?v=4N-KocuYyNU

Hi andykbba 
The error message says that you used the column that you need to unpivot as the primary key to create a a relationship, which is not efficient practice.

 You need to create another table with unique values of this column and use it to create relationships.
For more information please refer :

https://www.seerinteractive.com/insights/join-many-many-power-bi

(this is a more detailed explanation of bridge tables)

https://learn.microsoft.com/en-us/power-bi/guidance/star-schema

this is about modeling

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