In the older version of AWI (prior to 12.3) the HSTA object had a button "Apply Authorization Policy".
This option was the only way to apply the HSTA rules on every servers on which it has been assigned.
In AWI 12.3.0/12.3.1 this button does not exist anymore which means there is no way to use HSTA objects.
Release : 12.3
Component : ACTION BUILDER