I would like "UK English" to be a available in the list of languages which can be installed in out environment.

If you go to "Power Platform Admin Centre", pick an environment, select "..." alongside that environment, then at that "context" menue, select "Settings". Then select "Product" and then "Languages". There is no "UK English" in this list to install....

There are a lot of less well known languages, but not UK English. We would like "UK English" to appear in this list to be installed....

When our environment was installed, the installer accepted the default of "US English", altho we are actually in the UK. I don't know why they did this, but we want to changed so that it can be UK English......

Why does it matter? It does for a few reasons, for example if you go to "Customer Service Hub" and select "Email template", then click "+ New" to add a new template, then the only language available is US English. We can't make these Email templates to have a language of UK English.