Turning couplers into child objects

Is it possible to make a coupler be a non-animated child object? For example, the Norfolk Western Y6b from Machine Rail has a working invisible front coupler and to my understanding cant be changed to show up due to a glitch from the RSC Challenger.
My idea is to take a coupler and make it child object and place it on the front frame where it would normally show. First attempts which were changing a child object bin to show the coupler geo have been unsuccessful.
My idea is to take a coupler and make it child object and place it on the front frame where it would normally show. First attempts which were changing a child object bin to show the coupler geo have been unsuccessful.