How to create an additional share-screen windows and pin/lock it to the main screen

Description
I’m using zoom Windows sdk
I wonder if it’s possible to add an additional share-screen windows that will show up during all the meeting, this screen should be (somehow) pin/lock to the main screen in a way that it will not take the focused from the other participate that may share their screen as well.
in other words, I just need a small additional windows that show an external app running on my desktop. (note that this screen need to be available for seen also with the normal zoom app for participate that join the meeting without using the sdk)
any idea ?