Let's talk separately. 1, generally locking or not has nothing to do with the number of endorsements, but depends on whether you have done anything illegal in Macao. Or restricted from leaving the country in the mainland. (You know) 2. Hong Kong endorsements can basically be signed after use, but Macao endorsements are not necessarily. Some places have internal guidelines, such as indicators, and there must be a certain time interval between two endorsements (for example, 1 to 3 months). Of course, everything depends on your local conditions.
Hope to adopt