How to have Two cameras in view at once?

Kinda like the picture in picture of Planetary Annihilation i want to be able to get mouse location to world location from two different views that i can see at the same time.

the game is ‘kinda’ looking through two monitors at once and its necessary to be able to select things in both monitors at any time.

ive tried scene capture but cant seem to find a way to get mouse to world locations through it.

is this possible at all? any ideas?

Try the split screen option maybe this will be your solution.