This is from memory so it might be slightly wrong, but in PowerShell you can write:
Add-WindowsCapability -Online -Name OpenSSH.Client
Add-WindowsCapability -Online -Name OpenSSH.Client
Get-WindowsCapability -Online | Where-Object{$_.Name -like “OpenSSH.Client*”} | ForEach-Object{ Add-WindowsCapability -Online -Name $_.Name}