Share screen only specific area without hide immersive view

I want to share the screen with my app, but when I share the screen with sdk import zoomSdk from “@zoom/appssdk” with method shareApp the immersive view is hide, I need to keep the view for the host. First, I cannot found and option in sdk shareApp or other method just share some part off the screen. I saw in a post we can share with video sdk share a canvas. The main point I think we are using the immersive view for the host some thing to see. We want to share only one part of the screen for the attenders, but we need the host to see content in addition to the content that is shared to the guests. Guests would only see what was shared and not the entire app. Could you help us?