How do I render multiple camera views on the screen at once?

Example : splitscreen gameplay on the same map with characters being in different places and the screen being split into two

another question would be can you have different layout scaling size on different cameras and all of them show up on the screen? and can you resize the output of what a follow camera sees and show it smaller on the screen?

like let's say the top corner of the screen shows a zoomed out picture of the map in real time

Splitscreen is possible, but not easy:

construct.net/en/tutorials/split-screen-construct-addons-2252