If you need to see how your live video would look once it's live, you can stream it privately to Facebook or Youtube. Once you connected your FB page/Youtube channel in the LiveReacting Studio, scroll down to Advanced Settings and set the Privacy to Private.
Once your stream is live, only you can see the video.
Once you have a test page, connect it to the Studio and stream your video.
You can run a test with your FREE Trial. If you've already got some credits or a subscription, you can stop the test stream before its duration reaches 60 seconds, so the credit is back on your balance automatically.