Vim – Trigger action\script on save\write

These days you have a couple of options. With the default console you can just run Vim on Windows (you might already have it if you have git or other tools installed). To make the integration more seamless place this in your PowerShell profile:

$VIMEXEPATH    = "c:\<location>\vim.exe"

Set-Alias vim  $VIMEXEPATH
Set-Alias vi   $VIMEXEPATH

I'd also recommend adding the following to your vimrc file so it executes shell commands with PowerShell itself.

set shell=powershell
set shellcmdflag=-command

Otherwise the only ISE that supports a Vi mode right now is PSReadLine now available on the PS Gallery

There are usage notes but in brief for VI mode you need to add the following line to your ISE profile.

Set-PSReadlineOption -EditMode vi

Note that Vi support was added in 1.2 but 1.1 shipped with Windows 10. You will need to use the -force parameter to update shipping (aka manually installed) version.

You probably are looking for GNU Screen.

From this tutorial

Splitting the screen in half horizontally

Screen has the ability to split the window into two or more half horizontal windows. This feature will enable you, for example, to work in a half screen, while viewing the system resources ("top") in the remaining half.

To split the screen in two, first create two screen sessions. Then press Ctrl+a S which will split the screen in half, giving you a session on the top that you're already using and a blank session at the bottom.

To move to the bottom half, press Ctrl+a, then the TAB key.