Is it possible to skip the pop-up “X items were successfully added to the shopping cart” after clicking “add to shopping cart” and link directly to the registration form?
The modal you are referring to is from the Multi Event Registration add-on, that adds a ‘cart’ like system to allow you to add tickets from multiple events into a cart and then checkout.
If you don’t want the cart system and just want to go directly to checkout you can deactivate the Multi Event Registration add-on and it should do just that 🙂