Hi Kani,
Can you create a "set" or a different group that is ordered the way you want and then use a sequential effect.
Build a group that is 1,36,37,72,73,108,109,144,2,35,38,71,74,107,110,143,3,34,...
A pain to build but it would allow you to create the chase you are looking for.
Or, what about creating 4 effects playbacks, one for each group and playing them back simultaneously?
I know this doesn't address what you want to do, but it would be a good work around.
To Anders and Sarah and the rest of the Congo team, what if a chase effect could have multiple groups of channels as attributes and each group could be symmetrica, sequential. etc? That and rate control for a chase would be neat!
Okay, I know...I'm harping on about the rate thing.
Take care,
John