Axis lines in wall design

I have truss members laid out in wall design. I would like to see the center axis lines of members. Is there a way to show member axis lines while in wall design?

kayaker

Der_Planer,

In truss design, it's best to have the center lines of all truss members converge to a common point being concentric. Since I am doing my geometry layout in wall design being able to show the axis lines would help for visualization and manipulate if need be. You’re probably going to recommend using assisting geometry lines for my layout which I did. But thought maybe the axis lines could be shown like in D-Cam once the truss members where in place. What brought me to this question was I created an object of the first truss and saved the truss to my library when I placed it in a different wall I didn't have my layout lines which I forgot to select.