I use the Arcam AVR command set that is built into Roomie. It works really well but the volume control is a simple +- so if I don’t have a screen on (a projector in my case) I have to open cabinet doors to see what the volume is.
I’m tried the JBL set of commands on my Arcam (they both are owned by Hartman and their manuals on IP seemed similar) and it could control the volume on my Arcam. Nothing else worked - but volume control did and brought with it the dial that meant I could see the volume. With the screen now on it also meant that the on screen volume no longer came up as it was now on the iPad.
Is it possible to have this type of volume control for Arcam? It seems that the JBL commands work with it.