No, *** is not the same as Right of Abode.
*** is the right to a Hong Kong Re-entry Permit, which is essentially a long term visa for the mainland.
From the ImmD FAQ here
http://www.immd.gov.hk/ehtml/faq_hktd.htm :
"HKSAR R/Ps are issued to the following Hong Kong residents for travel to the mainland of China and Macau Special Administrative Region:
* Chinese citizens who have either acquired the right of abode or been granted unconditional stay in Hong Kong; and
* Persons not of Chinese nationality who have been granted unconditional stay in Hong Kong but cannot obtain national passports or travel documents of any other countries or regions."