I pretty much finished a tutorial here: http://www.youtube.com/watch?v=UbU4ie7MTr8 Although not part of the tutorial, I want to make the red light on the robot’s chest blink on and off through the whole animation. I can manually change two nodes from red to white and insert the frames into the timeline from the nodes themselves. But this would take a long time to go through the whole animation like this. And no Action is created. In the tutorial, I used the NLA editior for repeating a walk action. Is there a way I can copy and paste or otherwise speed up the process of turning the light from red to white and back to red for the duration of the animation?