Hangzhou to Macau by train? Advise details of such a trip?

It's suggested to take high-speed train from Hangzhou East Railway Station to Guangzhou South Railway Station first. Then take metro line 2 to Guangzhou Railway Station and walk southwest around 650 yards to find Guangzhou Bus Station. It has several coaches to Zhuhai Gongbei Bus Station. You can take it. After arriving, just pass the border from Gongbei Port and enter Macau.