Link 2 volumes to 1 slider

Questions
#1

Hey,

Does anybody know a way to link the volumes of two devices (HEOS) to 1 slider? Been racking my brain about this one.

Or is there a way to access the HEOS group?

Thanks in advance

#2

Neither are currently supported.

#3

Just a side note if you have a Vera Hub and your A/V device is supported by it a work around for this may be possible using the Vera Plugin Reactor. Basically you would have the ability to mirror the volume level of one device to the second.

#4

Could you create a plugin to send the increase/decrease value to the second slider based on the current value of the first?

#5

No sorry, i own a Fibaro Homecenter 3. So no Vera.