A "cheating" Magnifying Glass?

I'm developing a game in which, when you use the magnifying glass, you see the object up close, and it reveals unseen details.

Now, to make this work, I have 2 versions of the sprite. 1 is regular, the other is 4x the size (resized at 25%), with hidden details in it.

I've successfully swapped out the underlying sprite so the area where it magnifies is 4x larger and it "reveals" (source in blend mode) the 4x sprite.

My problem is, when using the 'Lens 2' effect, it only magnifies what's visible on screen, and doesn't show the 4x detail.

Is there a way to make this work without having to resize the project resolution 4x?

Thank you and kind regards,

Yusi D Jordan

You can do this with a blend mode. Check out this demo:

howtoconstructdemos.com/zooming-a-portion-of-the-map-capx

You can do this with a blend mode. Check out this demo:

https://howtoconstructdemos.com/zooming-a-portion-of-the-map-capx/

Just deleted my previous post as your excellent sheet work helped me figure it out. Thanks again, this was perfect!