Default Jira Automation Rule Actor

When configuring a new Jira Automation rule or editing an existing rule, the actor can be set to another user if the global permission Impersonate users in A4J global scope has a group setup against it (from version 9.1).

However, can a global default user be set for all automations instead of being the current user?

For example, we have a user called "Jira Automation" which we use on all automation rules. We would like to set this as a default for all rules and on the off chance the rule actor should be something else, the person creating/editing the rule can be added to the global permission group.