Thanks for the help Boof. That's exactly what I needed.

I am using SU to model simple road construction details. I draw location details in 2d - curbs, poles, station marks etc. My question is: How can I locate two items some specific distance apart or a specific distance from a reference point? A simple example is two lines. I draw one line on the green axis. I want to draw another line 6 FT to the right of the first line. How do I know where 6 FT is in relation to the first line?

I have been drawing dummy lines for measurements and then deleting the dummy lines. Is there a better way?
Thanks