Decomposition tree :: custom value

Not sure I got it but you have to get a new table like this in Dax

union

(

Summarize(Table,table[Country],"Category","Confirmed","Cases",[Confirmed Cases]),

Summarize(Table,table[Country],"Category","Recoveded","Cases",[Recovered Cases])

/// Add more

)

But you should have this a category already

Or do the data level unpivot of measure

https://radacad.com/pivot-and-unpivot-with-power-bi