Automation rule to make sure the initiatives and goals always match between the feature and epic Merged

We'd like the ability to set up automation rules for records that are added to other records. In our case, we'd like to have a trigger in place when a feature is added to a capability.

Currently, we have one set up where features in an epic will inherit the epic's initiatives and goals; however, this rule only triggers in a specific certain way:
If features are added to an epic, and then the user assigns the initiatives/goals at the epic level after, features will inherit those I/Gs.

Where it doesn't work:
Epic initiative/goals are set by the user; however, any features added after the fact will not inherit the I/Gs.

We'd like to set up a rule to make sure the I/Gs always match between the feature and epic, regardless of the order they're added.