Zoom language interpretations feature

I'm currently using Zoom One Pro account and was wondering if I could use the Language Interpretation feature with my account. 

Previously, I was not even able to see features and buttons like 'Set Interpreter' or 'Select language' without Webinar options but now I can see everything and even was able to use the feature! 

So, my question is, I was wondering whether this Webinar option is mandatory or not to utilize the Language Interpretation feature. 

Thanks!