How to open a new driving license category?

Hello Folks,

I have a Polish driving license and opened only category B, now I want to open an A category in Lisbon.

Could somebody please let me know if I need to have only a practical lesson and practical exam for opening category A? Or I should go though all course and exams again?

Unfortunately, I was not able to find any information on the IMT portal or other government pages 🙁

Thank you in advance.

submitted by /u/still_igor
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