Adding Column Header in visual

[Anonymous]

Dear All,

How do i add column header  "Volumn Quoted (m3)" in my visual table? I want something like this:

This is my current visual table,

Please advise, thank you. 

[Greg_Deckler]

@Anonymous If you switch to a Matrix, you can have a hierarchy in your Columns field well. You can even create a custom matrix hierarchy: The New Hotness (Custom Matrix Hierarchy) - Microsoft Power BI Community