Extend native library objects with Enterprise

I’m currently evaluating Enterprise because I need more map functionality than what is provided in the Pro version.

Is there a way to extend (or access) the native Map object from Enterprise? The functionality of the Corona SDK map object is fine – I just need some additional events and properties.

I’m assuming that I just need to build all of the map functionality I need (from scratch so to speak) for iOS and Android, ignoring the native Map object that the Corona SDK provides.  Is this a correct assumption?