Clarification on volume and mute
Adding this as a feature request as it's not really a 'bug', but would be great if you could clarify the use of the mute/volume options.  What I'd like to achieve is that when viewing the iOS 'remote', the volume up/down links to iPhone volume up/down and controls whichever activity is active on the Harmony being controlled (as opposed to just the TV). 

How should the options be set to achieve that?