[joeworkman]

The only issue that i have with this is when two lines overlap, the line becomes bold. This makes the chart look odd as part of the line is not bold and where multiple lines merge, it becomes bold. This look especially bad on dotted lines. Is there a way to fix this?

I would also like to ability to group lines. When I try to move the position of one line, the other just stay in place, I would like them to move as well. For example, when I have the "fork" as described above; when I adjust the horizontal position of line 1, line 2 stays in its original position, it does not adjust along with line 1.