Vertical Text for Matrix Headers

Hi bricorb ,

As far as I'm aware, it's not possible to dynamically filter vertical headings. 

You can post your idea to Ideas . https://ideas.powerbi.com/ideas/

It is a place for customers provide feedback about Microsoft Office products . What’s more, if a feedback is high voted there by other customers, it will be promising that Microsoft Product Team will take it into consideration when designing the next version in the future.

Here are some alternatives for your reference:

You can use a text box as a title as well and rotate the text veritically.

Please refer: How to Add a Vertical Text Box in Power BI - BI Elite

You can still use the matrix visual. Put both columns in Values box. Then in Format pane, search for Switch values to rows option under Values and switch on it. 

Best Regards,

Neeko Tang

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