You can use Normal mode Vim commands to move around in the text. For example, move the cursor atop a file and press ; you will then be editing that file. To go back to the browser use ":edit ." again, or use ":Explore". CTRL-O also works.
o,v - open in horizontal, vertical split when on file
i - cycle view modes including tree
normal mode - on file name gf to edit file
]c, [c - go to previous/next change
:ls
:hide edit otherfile
:b file - jumps to open file.js
:b <Tab> - nice lil buffer list
https://robots.thoughtbot.com/vim-splits-move-faster-and-more-naturally
C-w o - close every window but the current
C-w r, R - rotate splits
C-w HJKL - move split to direction
C-p, C-n - simple autocomplete
; - repeat last search (e.g. with t or f), , reverse
s//c - confirm each replacement
C-a, C-x - add/subtract, jump to digit
gi - puts you into insert mode at the last place you left insert mode
i[w|t|"|p] - inner word, tag, ", paragraph
as - a sentence
:-16,-14co. - line -16,-14 copy to here
qx{changes}q, @x - record, repeat macro to register x
use numbers to repeat more
command [number] motion
C-g - get file path
? - search backwards
N - previous match
C-o C-i - In and Out (jumplist)
% - matching paren
:%s/old/new/gc - c prompts before each replacement
:#,#s/old/new/g - between # and #
![command] - execute command
:r[!] [FILENAME|COMMAND] - insert file or command output
"np - put from n register