Image masks are available from release 1.0.3.10393
Tutorial: https://www.youtube.com/watch?v=xxsdbzBwWLE&ab_channel=CapturingReality&fbclid=IwAR1zS25CvInDdE77og1PTOM62NEQ2MdxD9Yhw3hLwNgy6OtIAiywhHth1_0