Before going through the requirement i will share the screenshot for better understanding.

The four are the rectangles and i have inserted four cameras in four rectangles.
now if i press the first rectangle i should able to see 1st rectangle camera on right side(Right-side camera), i mean the replica of 1st rectangle camera
if i press the second rectangle i should able to see 2nd rectangle camera on right side(Right-side camera) and the same goes with 3rd and fourth.
Can you guys please suggest me how can i achieve this