Hi Greg,
I don't know how to draw a line, I select a rectangle and try to keep it as thin as possible.
On the left just below the ribbon of icons, there is a drop down box where it says the track type you have used (PECO 100), select figures at the bottom, then rectangle. Place the cursor on the layout where you want the line to start and move cursor to where it ends. A pop up box allows you to choose a colour. Selecting a rectangle allow you to fill in colour. If you right click on the rectangle a pop up box opens and you can select rotate and select any angle you want- maybe creating several of these would work.
MalcT