With the Tiananmen Square initiative, the Canadian government issued what is called a minister's permit for people who were abroad so that they would be able to exit that country in order to come to Canada. In this instance, doing a similar thing would then be the Canadian government adopting a measure providing minister's permits for individuals who are abroad so that they would be able to exit Hong Kong to come to Canada.
At the time the Tiananmen Square situation was happening, Canada applied this measure, which was for those who were sponsoring loved ones here in Canada, to those who were abroad. While the application was being processed, a minister's permit would be issued so that they could get here without having to wait through a long processing time.
Is that what you are calling for?