column headers above certain calculated columns across matrix

I have just some basic text fields above the actual calculated columns for display reasons. is there a way to group these colums together so that when i expand the product level the headers "2023 FC", "2023 Actual", ets. also expand to the width of the columns of the matrix?

this is what happens now. i know you can do calculation groups but i also need the column header names to be there.