get_events_ex API usage

Hey,

As you probably know, there is an API:
https://api.dropboxapi.com/2/team_log/get_events
The problem with this API, is that I can't choose multiple categories, or event_types 
I found this API ( used in Dbx UI):

https://www.dropbox.com/2/team_log/get_events_ex

where payload has multiple categories.

But when I try to use, I get this error:
Error in call to API function "team_log/get_events_ex": Your app is not permitted to access this endpoint because it does not have the required scope 'private:events.read'. The owner of the app can enable the scope for the app using the Permissions tab on the App Console.

There is no permission private:events.read in my scoped app. How can I add this permissions to use this API? might be very helpful for me.

Regards,

Evgeniy