Hi venky,
We create an example for you using a furnace, the part we want to maximize has a transparent square above it:
The little square has this properties, so when you click in this a new display will open:
In this new display the configuration will be like this, using the image maximize in the background and one transparent square above it:
The transparent square configured like this:
The result will be, when I click in 1, image 2 opens, when I click in 2, image 2 disappears:
Let us know if you understand the logic with the transparent square.
OBS: It is not necessary to be a square, you could use the polygon or ellipse.
Best Regards,
Tatsoft Team.