Drawing wall according to LCS (V, -V, U, -U) of another wall instead of the global directions (S, N, E, W).

Drawing wall according to LCS (V, -V, U, -U) instead of the global directions (S, N, E, W).

I have modeled a building, which is oriented with an angle of 16.2 degrees. I want to edit the walls and add new ones.

However, every time I want to add a wall in the Structure module, I define the beginning and I want to define the end point of the wall, I use the defined end and give distance and direction.

Therefore, I have to write for example N  WRT owner (after selecting another wall from the building) instead of writing only the direction  "N WRT /*".

Is there any method, to work on the inclined coordination more efficiently? in order to change the working directions from the global directions to the local directions?