Dock Repair Ally Ships

I am trying to add the ability for docks to repair ally ships.
Looking at: ebps\races\core\buildings\building_unit_naval > ability_ext I do not see a repair ability, only core_building_scuttle and dock_upgrade_aura.

I do see that docks have an interactive_object_ext with an interaction_type: repair. But I can not find the actual ability or script that “interaction_type: repair” is calling, for lack of a better term. How do I find this “repair” action? How do I find it using the Content Editor? Usually I can right click on an attribute item and select find all references, but not in this case.