How can I switch cameras on a Google Pixel 2 during a video?

It seems the only time I can switch cameras is to stop the video, switch, then restart the video. This isn't an option during a livestream. The only time the switch option appears is while the video is stopped. I've tried swiping the screen to see if it comes up and nothing.

from Android Forums at AndroidCentral.com - Ask a Question http://bit.ly/2G0bq4n
via IFTTT