To ensure reliable registration management, each course is treated as a single event in the shopping cart. Therefore, it is not possible to add multiple variations of the same course separately after an initial selection.

👉 If you wish to book different options for the same course (for example, a full course for you and just one day for another person), please proceed as follows:

1. First, remove the stage already in your basket.
2. Return to the internship page and directly select all the desired options before confirming the addition to the cart.

This procedure ensures a correct booking and prevents any errors in processing your registration. Thank you for your understanding.