Device volume control when using AirPlay

I am using Roon Server to stream to a few Ethernet connected NAD7050’s using AirPlay. Its only RedBook but it works fine with one exception: the volume control on the 7050 is inoperative when Roon streams to it. This is causing me family grief as my wife and children do not want to have to use an iPad or PC to turn the volume up or down. When using AirPlay to stream from other devices (such as my iPhone) the volume can be controlled from both the streaming device and the end point. Could this volume fix be implemented in a future release, … please.