When a folder has linked rules there are less editing options than when it has its own
set of rules. You can either link to a different rule set or you can break the link
completely.
When you select the Manage Rules action for a folder with linked rules, the Rules page shows the name and path of the folder whose rule set is being referenced.
Note: The folder might also inherit rules from a parent folder. A message lets you know if this
is the case.
Changes to the rule set have to be done in the folder where the rules were originally defined. It's easy to get to the Rules page for the source folder: just click View Rule Set.