Hi everyone! I am a Mac owner (iOS 10.15.4) and I've just installed the Xsquawkbox plugin on Xplane11. Unfortunately I can't set up the ''push to talk'' button since this option is not shown in the setting menu, hence I can't either speak nor listen to the communication. Looks like the plugin is not full operative, there are some missing options in the audio setting. I want to specify that I just have a pair of earphones for now but I'm not sure this might be the cause of issue. I'm sorry for the silly topic, but it's my very first time in Vatsim :) Thank you very much for support!