Single-line wall? How to do?

[GeneDavis]

I'd like to draw a porch wall as a single line, not a wall with two lines at 1/16" thickness.

 

I did a wall spec, single layer 1/8 thick, line weight 25, color black, "inner" line weight 1, color white, but the plan is showing two black lines weight 25.

 

Is there a way?

[GeneDavis]

What a dummy I am!  Zero thickness is allowed.  I shoulda just looked at the OOB room divider wall, 

[rgardner]

1 hour ago, GeneDavis said:

What a dummy I am!  Zero thickness is allowed.  I shoulda just looked at the OOB room divider wall, 

The blank line type is also an option.