Controllers in vendor folders - my controllers - what is the right approach?

So I use a package from github ticketit(http://ift.tt/2peZ7aQ) and this package has controllers included.

And I integrated it into fresh laravel application.

now, I want to add an API endpoints into my application, my question is

should I copy the controllers from the ticketit package in the vendor directory and create my app/http/controllers folder or should I access the controllers in the vendor ? or are there any good design out there I should do?

so what i'm planning to do is

Route::get('api/v1/getdata','TicketsController@data');

Route::get('/getdata','TicketsController@data');

Please help on the design,

If I try to edit the controllers inside the vendor folders and upload it in server for sure it will not be upload.

btw, I'm using Laravel 5.4 and Laravel passport.