Endorsement refers to the paper affixed to your passport. Zhang Cai is a popular thing.
Visa is divided into student visa stay D, tourist visa G, other visa Q, business visa, visiting relatives visa and so on.
Student visa means that you can stay in Macao for up to 90 days at a time, and there is no limit on the number of round trips.
Ordinary tourist visa determines the number of round trips you can make according to the number of endorsements on it.
In other words, you have a notebook. Just post a student visa.
Do you understand?