You cannot edit managed rulesets, but you can add overrides to managed rulesets deployed from the root ruleset. Overrides take precedence over the default behavior of the managed ruleset.
The examples in the topics below use overrides to customize the behavior of managed rulesets.
You can deploy custom rulesets and managed rulesets in a single API request. The example below deploys a custom ruleset and a managed ruleset while preserving an existing rule.