Hey there Branislav!
Thanks for reaching out — that’s a great question, I can help with that π
1. Is SERBIAN language supported? If it isnβt, can that be changed/translated easily?
Translations for The Events Calendar are largely done by the community. It looks like Serbian translations have been started but only 35% of the strings are completed. You can see and contribute to the translations here β https://translate.wordpress.org/projects/wp-plugins/the-events-calendar/stable/sr/default
Since we use PO language files, our plugins can easily be translated.
2. What exactly do I get for $89 except the PRO calendar and 1 year of support? Do I get all the filters such as Feature Events, Day, Time, City etc?
Yes, you will have all the calendar views including Month, Day, List, Map and Photo. Featured events are included as well. I’m not sure what you mean by City though… You can view all the features of The Events Calendar Pro here β https://theeventscalendar.com/product/wordpress-events-calendar-pro/
Have a great day!
Ed βοΈ