Working with two game screens

Hi all, working on my first Unity game which is utilizing two physical screens for the game play and I need to display different things on different screens.

I have created a UI text objects which in turn created a Canvas. I found by setting the render camera different for each canvas, I could build out the scene backgrounds for each screen by making each canvas visible/invisible as needed.

My question is, how do I now create additional objects, such as sprite renderers and have them appear on only one screen. I have created a game object, added a sprite renderer component and assigned an image - but it always appears on both screens/game tabs