Accentuate single contour line on contour plot

Hi all,

I have plotted a angle of the function Omega(x,q). I want to be able to create highlighted contour lines at any given value. For example, the contour plot typically displays angle values from ~60 to 0 degrees and I want to clearly show the 30 degree line. I may want to show the 32.5 or 4.2 degree or whatever I choose. Is it possible in MathCAD 14? Thanks for any help.