Windows & Split Screen
----------------------
C-x 1			- go back to one window
C-x 2			- split screen horiz
C-x 3			- split screen vert
C-x o			- switch between split screens

M-x compile		- run make or last compile line
C-X `			- go to next error in compile window
M-x goto-line		- go to specified line number
M-x global-set-key	- bind a key to a command


Example of .emacs key bind:

(global-set-key `[f4] `compile)
(global-set-key `[f1] `next-error)