[סגור] How to add /uk/, /in/ directories in language setup with en_gb, eb_in languages

Background of the issue:
I am trying to add /uk/ for UK English and /in/ for Indian English in the language setup of my WordPress site using WPML. I want to translate content from default US English to UK and Indian English. I attempted to add these directories under the languages section, but encountered an issue.

Symptoms:
The Language code already exists. I can't map it to English for automatic translation.

Questions:
How can I add /uk/ and /in/ directories for UK and Indian English in WPML?
How can I resolve the issue of 'The Language code already exists' when adding new languages?
How can I map UK and Indian English to English for automatic translation?