2D Rebar - Longitudinal circle size

I'm cutting a section through a bridge deck.  The longitudinal bars are No. 5 bars and are difficult to see on the printed sheet.  The 2D rebar circle is the actual size of the No. 5 bar.  I did a little bit of digging into the Display.sys file and found the NDIA, FLGL, LMIN, LMAX parameters which I though would get me what I wanted.  I played around with several combinations of those parameters and it always just showed the longitudinal circle as the actual diameter of the bar.  Am I missing something with those parameters or is there something else in the sys file that could show those 2D circles larger than the actual diameter of the bar?

Thanks,

Jamie

PS - 10.05.02.51