Do you mean that if a component falls out of sync, I can manually go to the screen for that device, and press the power button to get it back into sync?
That would drive my wife nuts. The problem is the XBOX 360 has a fan and heat, so we like to turn it off when not in use. Therefore, I'd like to set up three macros (at least): (1.) Play a DVD (which would include a "power on" command for the XBOX), (2.) Watch TV (which would include a "power off" for the XBOX), and (3.) power everything off. As you can see, these macros would never be in sync with simple power toggle command. My understanding is that the XBOX 360 does support discrete power on and off commands, but you have to be able to program the remote with the hex codes. The commands can't be "learned" from the original remote, because it uses a single toggle button to save space.
I think I answered my own question. I don't think I can use this remote.