Can I record myself in Video using Metronaut?

Yes!

Starting version 6.2.0 you can make Video Recordings of your performances, with yourself included (or not) via your device's Camera.

You can enter Video Mode by pressing the Record button on any music score page, and then selecting Video. While in Video mode, any performance triggered by the Play button will record the screen, the audio and your camera input as you adjust on the screen. When you press Pause, the App will automatically bring you to the My Recordings screen to watch, save or share the video.