Digital Art Zone

Well, I have one tool working for one tire track.  I need two, though, but does anyone know how to get two tools working in one field?  The documentation suggests that you need a tool for each track, but I can only get one tool working in a field.  The second one will load, but will not leave a print.

I wished I could help you. I didn’t forget you, but I couldn’t even get the first track to render.
Could you tell me how you succeeded to do that?