Ability to create more fields inn the fluids section of vehicle maintenance

Under the fluids section in the Vehicle maintenance section I would like the ability to add fields / lines. If I am working on a 4x4 truck there is 2 axles and if it is a ford they take different fluids, as well there is no line for transfercases. My new ford fleet takes DOT 4 fluid and the older units take DOT 3. As well I have tractors and heavy equipment in my fleet so the ability to personalize each units needs would be great.

Thanks for reading