Creating Multiple Screens :
:split --> Split Horizontally:vsplit --> Split Vertically
:new --> to open new file
:w filename --> to save a new file with a name filename
or :new filename --> open new file with name filename
Movements between screens :
(Remember with Control Windows : Ctrl+W)
"ctrl+w" + arrow key ( Arrow keys easy to move between screens)or
"ctrl+w" + [h | j | k | l ]
h --> move to left screen
l --> move to right screen
j --> move to down screen
k --> move to upper screen
Not much difficult to remember as keys "h" , "j", "k", "l" are in sequence on keyboard.
:only --> Full screen
You may also want to know useful vi cursor movements
https://linuxhint.com/how-to-use-vim-split-screen/
