Look through 2 different cameras in 2 different viewport? I want one viewport viewing through one camera and another viewport viewing my scene through another camera. How can I do that?

Right now Blender will switch both viewports to active cameras.

I need to do it this way since I'm tweaking my lighting and I want to make sure my object will look good from different angles as I'm rendering it through both cameras.
Turns out you do it by toggling this Local Camera function ON.