How to open the file under cursor in vim when its listing directory contents(Netrw Directory Listing)

Question

I can press o but it creates a new window and opens the file there. I want it to open in the same window. At least it should display on the same window each time open some file but it creates new windows for each file I open. Also is there a way to make it open as a vertical split and not horizontal split? Where can I find the complete documentation/cheatsheet of all possible commands in 'Netrw Directory Listing' mode?

Answer 1

For the answers to your other questions, see

:help netrw

for all the documentation,

:help netrw-v

for using a vertically-split window, and

:help netrw-browse-maps

for a listing of the normal-mode commands (maps).

Answer 2

In the Netwr listing press ENTER.