The best way to go about the 10.6 documentation is to go to main page for 10.6 documentation which is -
https://techdocs.broadcom.com/content/broadcom/techdocs/us/en/ca-enterprise-software/continuous-testing/devtest-solutions/10-6.html From here the customer will be able to use the options on the left -- In this case Administering ----> License Administration
When wanting information also try search, normally those links are not broken.
Also went to Doc people to fix the broken link, the above is a workaround.