Option to mount Waterproof Containers to handrails

It is nice that they included handrails on the Tadpole vehicle so that co-op players can ride with you, but what if, when you are playing single-player mode (or both), you had the option to mount the Waterproof Container(s) you can carry around to those rails (since you won’t have anyone else with you), it could be a real big help (especially in early parts of the game). Just a thought.