i can't use voice activation reliably no matter the settings because i game right next to someone else. i use push-to-talk for every application that captures my microphone, but pngtuber plus does not seem to have this option. as far as i have found, the only input that pngtuber plus respects for un/muting is the physical on/off button on my microphone. is it possible to add a push-to-talk hotkey to this application? thanks very much in advance.

I second this. I tend to chat with my discord while streaming on twitch and it's odd to have the mouth move but no one in my stream hears me. I have 2 separate PTT buttons, one for discord, one for streaming.