See the end of this video: https://www.youtube.com/watch?v=tkR5oaXNpL4&t=46s The drawbar LED's are moving and changing color on their own. How do I create this effect on my YC or is this a new feature planned for a future firmware update?
There's not a mode that animates the LEDs. What you're seeing in the video is an artifact of the camera's frame rate (or encoded file) vs the RGB LED flash rate. They are flashing at a fast rate in order to create a different blend (intensity) of Red vs Green vs Blue which fools your eye into seeing the combination of mixing these colors at those amounts ("ratios" ) together.
It's like how spokes of a tire can look funny when the rate of rotation surpasses what your "eye" can keep up with.
Take a video of your own board with different cameras and you may be able to reproduce the timing that would cause a similar video artifact.
Current Yamaha Synthesizers: Montage Classic 7, Motif XF6, S90XS, MO6, EX5R