First, are you talking about Macao work visa, Hong Kong and Macao pass+stay in Macao endorsement? If yes, you can travel back and forth between Macao and the mainland many times within the validity period of the stay in Macao endorsement (that is, from the date of issuance to the validity period of exit), without any restriction of three months.
Second, holders of such documents can choose the mainland residents' channel to queue up at Gongbei Port.
Third, if you want to handle self-service customs clearance, it is very simple. After the first entry and exit, you only need to bring the original ID card and the pass to Hong Kong and Macao to the data collection room next to the entry duty-free shop at Gongbei Port for pre-recording. The border inspection department does not charge any fees, and can choose the self-service channel for customs clearance after each entry and exit, which can save the space for stamping and prolong the service life of the documents. Please note, however, that the pre-recording was made when you returned to Zhuhai from Macao. You have already passed the Macao Customs and have not gone through the inspection formalities at Zhuhai Customs. If you go to Macau from Zhuhai, you can't go directly, because the customs is completely closed and you can't go.
Oh, by the way, I want to correct you. Passports to and from Hong Kong and Macao held by mainland residents are all called "endorsements", which are issued by the Chinese government to Chinese citizens and visas to foreign citizens.
I hope my answer is helpful to you. If you don't understand, you can continue to leave a message to ask questions.
To supplement your question, I consulted the relevant regulations and made the following explanation:
You said you had a blue card from Macau. According to China's regulations on issuing travel permits to and from Hong Kong and Macao and their endorsements, you can also apply for stay endorsements for your family members, which refer to your children and spouse.
If you want your parents to visit you in Macau, you can choose to apply for a visit endorsement (T) for your parents. Not only your parents can apply for a visit endorsement to visit you in Macau, but also your spouse's parents and your siblings can apply for a visit to Macau. I came to the conclusion based on the work habit research document. The specific application materials should also be consulted with the exit and entry administration department of the public security organ where the parents are located.