FORMATION LEVEL

Hello Sir,

                  I'm using MX Road V8 XM for sone time. While designing vertical alignment, i want road formation level to be 2 meter (Avg.) above ground, if the ground is almost flat. How can i do it? it need to be done while designing vertical alignment i guess, if there is any other option please let me know. I hope you got my question how to fix that 2 meter high formation level through out.

regards,

Sachin

** image below might help