Yeah, I used to have a Harmony 890, and it broke, so I upgraded to the 900, which was their newer high end model. I was very surprised that they dropped sequence support on the 900. There is an uproar in the Harmony forums about it. Harmony support says it confused people. I think they realized that they could save money on tech support costs by removing a feature that could confuse novice users. What a cheap move to make, especially on their highest remote.
It's a shame, because if it had sequence support, I could do this directly with the remote.