The thing is that depending on how you do it, the division can mean nothing. Sure, you can use grouping which would make it a little easier and require less channels to sequence them but since you have the ability of individual node control, you can use that to your advantage. You could do it by lighting node 1. When node 1 gets t about 40%, start lighting node 2. When node 2 gets to about 40%, start lighting node 3, Once node 3 gets to 40%, start lighting node 4. At this point you will have 4 nodes lit with the first two at or near 100%. Now, as you start lighting node 5, you can start dimming node 1 and at the same rate that you are lighting node 5. As you then begin lighting node 6, start dimming node 2. Following this pattern will give a nice smooth leap across the arch and it doesn't matter how many nodes are there, they will all be used. Nutcracker may already be able to do this already and if not, I don't think that it would be difficult to add this simple sequence to it which would make leaping arches a simple thing to do. The paramaters that I would use would be the rate of dimming, the percentage trigger before the next node begins, and the time that a node remains at 100%. This would allow for tuning that should make any arch look good when leaping.
