prefix == Ctrl+f
(vim movement keys)
prefix h
prefix j
prefix k
prefix l
prefix shift+h (increase/decrease left side)
prefix shift+j (increase/decrease bottom side)
prefix shift+k (increase/decrease top side)
prefix shift+l (increase/decrease right side)
prefix c (create new window)
prefix x (close current window)
prefix n ([n]ext window)
prefix b (previous window a.k.a. [b]ack)
prefix | (vertical split)
prefix _ (horizontal split)