Set alt+j alt+k alt+l alt+h to move in directory, the both first one in directory structure, the both last in the directory history

Set-DirShortcut.ps1

Set-PSReadLineKeyHandler -Chord "Alt+k" -ViMode Insert `
	-ScriptBlock { 
		param($Key, $Arg)
		$Level = 1
		[Microsoft.PowerShell.PSConsoleReadLine]::TryGetArgAsInt($Arg, `
			[ref]$Level,1)
		Set-Location -Path (( 1..$Level |% { '..'}) -join '\') } `
	-Description "Move to Parent Directory"
Set-PSReadLineKeyHandler -Chord "Alt+k" -ViMode Command `
	-ScriptBlock { 
		param($Key, $Arg)
		$Level = 1
		[Microsoft.PowerShell.PSConsoleReadLine]::TryGetArgAsInt($Arg, `
			[ref]$Level,1)
		Set-Location -Path (( 1..$Level |% { '..'}) -join '\') } `
	-Description "Move to Parent Directory"
Set-PSReadLineKeyHandler -Chord "Alt+j" -VIMode Insert `
	-ScriptBlock {
		$Cursor = $Null
		$Line = $Null
		[Microsoft.PowerShell.PSConsoleReadline]::GetBufferState([ref]$Line,`
				[ref]$Cursor)
		(Get-Childitem "$Line*" -Attribute Directory )[0].FullName | Set-Location

if($PSVersionTable.PSVersion.Major -eq 7){
	Set-PSReadLineKeyHandler -Chord "Alt+l" -VIMode Insert `
	-ScriptBlock { cd + } -Description "Move to the next directory in history"
	Set-PSReadLineKeyHandler -Chord "Alt+h" -VIMode Insert `
	-ScriptBlock { cd - } -Description "Move to the previous directory in history"
	Set-PSReadLineKeyHandler -Chord "Alt+l" -VIMode Command `
	-ScriptBlock { 
		param($Key, $Arg)
		[int]$Level = 1
		[Microsoft.PowerShell.PSConsoleReadLine]::TryGetArgAsInt($Arg, `
				[ref]$Level,1)
		for($i=0;$i -lt $Level; $i++){ cd + }
	} -Description "Move to the next directory in history"
	Set-PSReadLineKeyHandler -Chord "Alt+h" -VIMode Command `
	-ScriptBlock {
		param($Key, $Arg)
		[int]$Level = 1
		[Microsoft.PowerShell.PSConsoleReadLine]::TryGetArgAsInt($Arg, `
				[ref]$Level,1)

		for($i=0;$i -lt $Level; $i++) { cd - }
	} -Description "Move to the previous directory in history"
}