I'm after some help to understand when I can use a nested policy in QPM 4.1. I want to avoid having to write ACLs multiple times and ai get the impression nested policies may help here. However, the docs are pretty poor so don't tell you when you can use nested policies.
I beleive I can make use of a previously created nested policy using the "service policy" section under the "Traffic Rule Wizard". However, I'm not sure when the "service policy" option should be available for use as usually it's grayed out.
Exactly what defines whether the "service policy" option is available for use?