How to extend a Vehicle Movement Component Class

I am building a custom vehicle for use in simulations. I have based it off of a Wheeled Vehicle Movement Component (WVMC). However, I also need independent wheel steering/throttle/braking for my vehicle. These functions/BP nodes exist for a Simple Wheeled Vehicle Movement Component, but the other customization options only exist in the WVMC.

Is there a way to edit the functions in the WVMC? Any other solution would be appreciated also.

Cheers!