Abbreviations
M- means hold the META or EDIT or ALT key down while typing . If there is no META, EDIT or ALT key, instead press and release the ESC key and then type in quick succession.
How do I switch between windows?
You can press M-n/M-p to go to the next/previous window, or M-N where N is 1-9. You can also press M-w to bring out a list of all the windows. In the window list, you can select a row and press return to go to that window.
How can I close a window?
Press M-c.