Pseudolocalization cannot find English (XA) in languages

Question

I am trying to use pseudolocalization as indicated in the official android documentation:

https://developer.android.com/guide/topics/resources/pseudolocales

I follow each step:

• added pseudoLocales true in gradle file under debug buildconfig
• run the app
• go to settings -> languages

but unfortunately I cannot find English (XA). Maybe I am missing something.

Tested on Samsung Galaxy A7