How to show FRL at the both sides Median Edge in the L-Section

Hi Dears,

I am using MX Road V8i Select series 2. I have to make  a design for four laning road. I have one Center Line and 2 Median edge for both sides. The problem is how we can show both sides median edge as FRL in L-Section. May kindly be reply if anyone has the solution.

Thanks and Regards