Hide header row of 2D repeat region OR change header text

I am trying to hide the header of my 2D repeat region because the header descriptions are from the family table items that were added whether they're dimensions or parameters or what have you. This won't work because for example the parameter "thread_size" shows up as just that where as my company would like the column header to be "Thread Size" (notice the space between the words). 

So I would like a solution to my problem, is there either a way to change what the column headers are for 2D repeat regions OR is there a way to just hide that row so I can add my own row above with the proper headers that I would like for the table column descriptions?

Thank you.