About Advanced Screen Share
Video conferencing solutions offer full-screen or window sharing. What they normally do not offer is sharing a portion of your screen. Advanced Screen Share helps you with that by offering you to share a portion of your screen!
Works by letting you pick a part of your screen to display in app, then share Advanced Screen Share in your video conferencing software. So you might overlay the frame over two apps side by side to show them both, or only part of one.