Hello again! I found this new feature and I tried it and it worked. Talking Thomas, Salty, Percy, Victor, and Diesel's battery covers are interchangable between the five engines. So instead of having Victor with a truck of Crates, Diesel with Drums, Salty with Crates, Percy with Coal, and Thomas with Stone, you can have Thomas with Crates, Percy with Stone, Salty with Drums, Diesel with Crates, Victor with Coal and so on.
Please leave a comment to tell me what you think about this new feature.