How to change the order of languages in Region & language settings?

Question

In the 'Region & language' settings (Language settings), I can easily add a language. How can I control the order of this list?

The settings on the tab clearly states:

Apps and websites will appear in the first language in the list that they support.

I am not able to find any instructions on setting the order. The reason behind this is I need to do testing of an app and I want to control what language comes first as our app supports multiple languages. So in the example below I would like to put Thai first, followed by English (United Kingdom).

Answer 1

If you click on one of the entries, several buttons will appear:

Click on the up or down arrow to change the selected language's position.

If you need to automate the change, you can use PowerShell! The Get-WinUserLanguageList cmdlet retrieves the current arrangement of languages. You can swap the items around and save your changes by passing the adjusted list to Set-WinUserLanguageList.