Pro tools language issue

Hello,

I installed Pro tools 11.1.3 in French but I want to have it in English to follow the training, the tutorial, etc.

I have seen a easy way to proceed for Windows but not for MAC.

Perhaps I can re-install it from scratch but I'm afraid to have a licence issue if I do that with English language.

Is-there someone that experience it and know a work around or if I can install it a second time without any issue?

Thanks, Sam