Push-to-talk microphones are useful for avoiding feedback while streaming and conferencing simultaneously in an Evercast session. Here's how to make it work.
In a live room, on the bottom toolbar, click the More button, and then Device selection. Or, if you're in the lobby, click the Settings button to open Device selection.
In the Microphone drop-down, select your push-to-talk microphone. The name of your microphone will vary by the brand and model.
Verify that your microphone is working by talking into it and watching the Microphone level audiometer at the bottom left of the window. When you see the green bar move, you're good to go!