Hey Marko
You can change the “Events” term at Events > Settings > General > Events URL slug, as well as renaming your categories at Events > Event Categories.
If you want to customize these from a code approach, I’ll refer you to our Themer’s Guide. This will help you override our functionality without things breaking when we ship an update. Unfortunately, we’re limited in helping with customizations, per our Scope of Support / Terms.
Is there anything else I can help you with?
Thanks
Courtney 🙂