I just upgraded to the VZW31-SN 2-in-1 Dimmer from Inovelli (Gen 3). Coming from the Gen 2 it was a breeze and love how easy is the setup of the new Aux to get it to work out-of-the-box without Hubitat mirror or coding.
Now I am still trying to figure when I activate parameter "123 Aux Switch Unique Scenes" to enable the Aux to have independent action, where to I set my trigger/action for the button of the Aux switch. Since the Aux don't show as a device, it does not show in any apps or so I think so.