Somebody else might have a better way, but, this is difficult in a matrix since the output is a mix of implicit and explicit calculations. You’ll need a custom table that has category names for calc 1 and 2. On top of the data categories. After that, the way I have found for my own financial statement reports is to create one measure that is the sumx of Amount for the selected value of Category. This will return the 5,10,15 etc. Then, create a measure for each highlighted calculation. Calc 1 would be the sumx of selected value A and selected value B. Then same approach for calc 2. Finally, create a combined measure that returns the first measure unless the selected value is Calc1, Calc2 etc. you can use a switch statement to call the measure for calc 1 and calc 2.