Displaying Multiple Columns based on Selection

Thigs First thing first, when you are saying pivot I think you are referring to unpivot . The table shape is already in the pivot format. Having said that, it will be easier if you unpivot (I know you want to avoid it) but that is your best option, the sooner you do it and fix your existing measure, the better off you will be. It is always advisable to go with the best practices of your data rather than finding a way to solve simple reporting with complex DAX functions.  The rest is up to you, fix the table now, or keep working with the current model and try to figure out the solution.