Can I control volume with iPhone using Ropieee in Roon?

Hi–using a high fi berry HAT/pi for my bridge, with an iPhone as remote. Can I control my stereo’s volume with the iPhone? That would be very convenient.

Set the Raspberry Pi/ DAC hat to use Device Volume. To do this make this the active zone on your iPhone, touch the speaker icon and then the gears. Now go to Device Setup and change Volume Control to Device Volume.

You’ll have a volume control slider when you touch the speaker icon.

Thanks! Anyway to use the iPhone’s vilune control on the side?

No, that’s not possible.