Hi! I'm quite new to 'R' but am taking a data science class and one of the things we're learning about is 'R'. I have a Mac and downloaded version 4.0.3 of 'R'. My professor was showing his screen in a recent class and it breaks things into 4 quadrants (top left quadrant: typing in commands, bottom right quadrant has things like graphs, for example) but when I launch 'R' I only get essentially 1 quadrant that takes up the screen (place to type in commands). How does one get the screen to split into those 4 quadrants?