any fluid movement management in this app ?

In fact call it an input source rather than mic because I want to use this app with live DJ sets using my DAC input. My DAC input would be a poor choice for default "microphone" which means to use this app as I desire too would currently require changing and then reverting my default microphone before and after every use of the app. I love the app otherwise, but this is a significant feature I seriously need. Another feature I would love to have is the option for video backgrounds....