You can add additional languages to your WinPE by using the Language parameter. In my example, I used the ADK winpe.wim and added Spanish and French to my English US WinPE so I gave a Name that will help me identify the added languages
New-OSDCloudTemplate -Name 'ADK en es fr' -Language es-es,fr-fr
-SetInputLocale
This parameter allows me to set the default keyboard to something else, like English (US) Dvorak
New-OSDCloudTemplate -Name 'ADK en Dvorak' -SetInputLocale '0409:00010409'
-SetAllIntl
Finally, I can change all the International Defaults to one of the added Languages using this parameter. This will make the following changes