Basically, tourists are not allowed to sign. If you want to sign, you can leave the country twice a year, but each time it is only seven days, that is, you must leave the country seven days after entering Macao for the first time. You can enter the customs again on the same day and stay for seven days, that is, you can enter the customs four times and stay in Macao for fourteen days. And your Hong Kong and Macao Pass must be valid for more than one year, otherwise you can only apply for a seven-day visa once. After using these two trips, you can only go back to China to apply for a new visa and wait for the approval process. There is a valid endorsement for leaving the country twice within one year.
If in doubt, you can ask again.