New to Xlights and was trying this with my AC Megatree. I was trying from the bottom right, not the top left. Are there any other prerequisites for this? I looked in the manual about being in node view, but I want to chase across the strands. Maybe I don't have it set correctly in my model. I did a megatree with 16 single color strands. The Alt click and drag is just not working for me for some reason. Thanks for any pointers in the right direction.