I think it would he useful to have a traffic warning audio alert muting capability.

I found it didn't work very well in the air, Graham. I selected and wanted it to 'suppress all', just as it says on the tin but it doesn't. If the SkyDemon algorithm thinks there is still a danger then you still get the 'danger' warnings. Unfortunately, many people don't have an air switch attached to their ADSB Out equipment, which means they are transmitting while they are on the ground. I got so distracted by having 'danger' warnings from ground traffic piped to my headset, even though I'd already told SkyDemon to shut up, that I turned off the Bluetooth to my headset. This is certainly not ideal. The 'Shut Up' switch should mean just that and not 'We think we know better than you when not to shut up'.