Kit Boothroyd

I really like the random steps implementation for the live.grid but I would like to add functionality to set some steps to be fixed while the rest are randomised. Is there any way I can do this using the random message? If not I would really appreciate some pointers on how best to implement this another way. Included the patch for reference. Thanks :) 

I really like the random steps implementation for the live.grid but I would like to add functionality to set some steps to be fixed while...

live.grid random steps for certain steps only